diff --git a/build/CanvasLite.js b/build/CanvasLite.js
index 0af3de5..af2bfb2 100644
--- a/build/CanvasLite.js
+++ b/build/CanvasLite.js
@@ -2,14 +2,14 @@
 *   CanvasLite
 *   an html canvas implementation in pure JavaScript
 *
-*   @version 0.9.92r2 (2023-08-02 12:05:01)
+*   @version 0.9.92r2 (2023-08-02 12:49:06)
 *   https://github.com/foo123/CanvasLite
 *
 **//**
 *   CanvasLite
 *   an html canvas implementation in pure JavaScript
 *
-*   @version 0.9.92r2 (2023-08-02 12:05:01)
+*   @version 0.9.92r2 (2023-08-02 12:49:06)
 *   https://github.com/foo123/CanvasLite
 *
 **/
@@ -277,7 +277,7 @@ function RenderingContext2D(width, height, set_rgba_at, get_rgba_from)
         set: function(c) {
            if (c instanceof Gradient || c instanceof Pattern)
            {
-               get_stroke_at = Rasterizer.getRGBAFrom(c.getColorAt.bind(c));
+               get_stroke_at = c.getColorAt.bind(c);
            }
            else
            {
@@ -292,7 +292,7 @@ function RenderingContext2D(width, height, set_rgba_at, get_rgba_from)
         set: function(c) {
            if (c instanceof Gradient || c instanceof Pattern)
            {
-               get_fill_at = Rasterizer.getRGBAFrom(c.getColorAt.bind(c));
+               get_fill_at = c.getColorAt.bind(c);
            }
            else
            {
@@ -3314,37 +3314,16 @@ function Gradient(grad_color_at)
     self.getColorAt = function(x, y) {
         var im = transform.imatrix(true),
             p = im ? im.transform(x, y) : null,
-            rgba = new ImArray(4);
+            rgba = [0, 0, 0, 0];
         return p ? grad_color_at(p[0], p[1], colorStops(), rgba, 0) : rgba;
     };
-    self.getBitmap = function(width, height) {
-        width = stdMath.round(width);
-        height = stdMath.round(height);
-        var imatrix = transform.imatrix(true),
-            color_stops,
-            i, x, y, p,
-            size = (width*height) << 2,
-            bmp = new ImArray(size);
-        if (imatrix)
-        {
-            color_stops = colorStops();
-            for (x=0,y=0,i=0; i<size; i+=4,++x)
-            {
-                if (x >= width) {x=0; ++y;}
-                p = imatrix.transform(x, y);
-                grad_color_at(p[0], p[1], color_stops, bmp, i);
-            }
-        }
-        return bmp;
-    };
 }
 Gradient.VERSION = "1.2.3";
 Gradient[PROTO] = {
     constructor: Gradient,
     transform: null,
     addColorStop: null,
-    getColorAt: null,
-    getBitmap: null
+    getColorAt: null
 };
 Gradient.createLinearGradient = function(x1, y1, x2, y2) {
     x1 = x1 || 0;
@@ -3487,38 +3466,20 @@ function Pattern(pat_color_at)
         configurable: false
     });
     self.getColorAt = function(x, y) {
-        var im = transform.imatrix(true), p, rgba = new ImArray(4);
+        var im = transform.imatrix(true), p, rgba = [0, 0, 0, 0];
         if (im)
         {
             p = im.transform(x, y);
             pat_color_at(p[0], p[1], rgba, 0);
         }
+        rgba[3] /= 255;
         return rgba;
     };
-    self.getBitmap = function(width, height) {
-        width = stdMath.round(width);
-        height = stdMath.round(height);
-        var imatrix = transform.imatrix(true),
-            i, x, y, p,
-            size = (width*height) << 2,
-            bmp = new ImArray(size);
-        if (imatrix)
-        {
-            for (x=0,y=0,i=0; i<size; i+=4,++x)
-            {
-                if (x >= width) {x=0; ++y;}
-                p = imatrix.transform(x, y);
-                pat_color_at(p[0], p[1], bmp, i);
-            }
-        }
-        return bmp;
-    };
 }
 Pattern[PROTO] = {
     constructor: Pattern,
     transform: null,
-    getColorAt: null,
-    getBitmap: null
+    getColorAt: null
 };
 Pattern.createPattern = function(imageData, repetition) {
     if (imageData && ('function' === typeof imageData.getImageData)) imageData = imageData.getImageData();
@@ -3733,7 +3694,7 @@ function interpolatePixel(pixel, index, rgba0, rgba1, t)
     pixel[index + 0] = clamp(stdMath.round(rgba0[0] + t*(rgba1[0] - rgba0[0])), 0, 255);
     pixel[index + 1] = clamp(stdMath.round(rgba0[1] + t*(rgba1[1] - rgba0[1])), 0, 255);
     pixel[index + 2] = clamp(stdMath.round(rgba0[2] + t*(rgba1[2] - rgba0[2])), 0, 255);
-    pixel[index + 3] = 3 < rgba0.length ? clamp(stdMath.round(255*(rgba0[3] + t*(rgba1[3] - rgba0[3]))), 0, 255) : 255;
+    pixel[index + 3] = 3 < rgba0.length ? clamp(rgba0[3] + t*(rgba1[3] - rgba0[3]), 0, 1) : 1;
     return pixel;
 }
 var hexRE = /^#([0-9a-fA-F]{3,6})\b/,
diff --git a/build/CanvasLite.min.js b/build/CanvasLite.min.js
index 1247aeb..e5dfd80 100644
--- a/build/CanvasLite.min.js
+++ b/build/CanvasLite.min.js
@@ -2,7 +2,7 @@
 *   CanvasLite
 *   an html canvas implementation in pure JavaScript
 *
-*   @version 0.9.92r2 (2023-08-02 12:05:01)
+*   @version 0.9.92r2 (2023-08-02 12:49:06)
 *   https://github.com/foo123/CanvasLite
 *
-**/!function(e,n,t){"use strict";"object"==typeof module&&module.exports?module.exports=t.call(e):"function"==typeof define&&define.amd&&"function"==typeof require&&"function"==typeof require.specified&&require.specified(n)?define(n,["module"],function(n){return t.call(e)}):n in e||(e[n]=t.call(e)||1)&&"function"==typeof define&&define.amd&&define(function(){return e[n]})}("undefined"!=typeof self?self:this,"CanvasLite",function(e){"use strict";var n="prototype",P=Object.defineProperty,c=Object[n].hasOwnProperty,t=Object[n].toString,f="undefined"!=typeof global&&"[object global]"===t.call(global),o="undefined"!=typeof window&&"[object Window]"===t.call(window),Q=Math,q=1/0,r=Q.sqrt(2),A=isNaN,B=isFinite,d=Q.PI,x=2*d,l=6,p=r,m=.5,E="undefined"!=typeof Uint8ClampedArray?Uint8ClampedArray:"undefined"!=typeof Uint8Array?Uint8Array:Array,z=[0,0,0,0],a=/[MLHVCSQTAZ]/gi,S=/-?(?:(?:\d+\.\d+)|(?:\.\d+)|(?:\d+))/g;function F(n,e,t,r){var a,o=this;if(!(o instanceof F))return new 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n={};switch(n.sentinel=o.readByte(),String.fromCharCode(n.sentinel)){case"!":n.type="ext",e(n);break;case",":n.type="img",t(n);break;case";":n.type="eof",i.eof&&i.eof(n);break;default:throw new Error("Unknown block: 0x"+n.sentinel.toString(16))}"eof"!==n.type&&a()},n={};if(n.sig=o.read(3),n.ver=o.read(3),"GIF"!==n.sig)throw new Error("Not a GIF file.");n.width=o.readUnsigned(),n.height=o.readUnsigned();var u=An(o.readByte());n.gctFlag=u.shift(),n.colorRes=Pn(u.splice(0,3)),n.sorted=u.shift(),n.gctSize=Pn(u.splice(0,3)),n.bgColor=o.readByte(),n.pixelAspectRatio=o.readByte(),n.gctFlag&&(n.gct=r(1<<n.gctSize+1)),i.hdr&&i.hdr(n),a()}var Ln=new Int32Array([0,1,8,16,9,2,3,10,17,24,32,25,18,11,4,5,12,19,26,33,40,48,41,34,27,20,13,6,7,14,21,28,35,42,49,56,57,50,43,36,29,22,15,23,30,37,44,51,58,59,52,45,38,31,39,46,53,60,61,54,47,55,62,63]),K=5793;function En(){}function zn(e,t,n,r,a,u,s,o,c){n.precision,n.samplesPerLine,n.scanLines;var 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t-U}function Fn(n,e){var t=[],r=e.blocksPerLine,a=e.blocksPerColumn,o=r<<3,i=new Int32Array(64),l=new Uint8Array(64);for(var u=0;u<a;++u){var s=u<<3;for(z=0;z<8;++z)t.push(new Uint8Array(o));for(var c=0;c<r;++c){B=A=P=I=T=b=y=v=g=m=p=d=h=f=C=k=x=w=void 0;for(var f,h,d,p,m,g,v,y,b,w=e.blocks[u][c],x=l,k=i,C=e.quantizationTable,T=k,I=0;I<64;++I)T[I]=w[I]*C[I];for(I=0;I<8;++I){var P=8*I;0==T[1+P]&&0==T[2+P]&&0==T[3+P]&&0==T[4+P]&&0==T[5+P]&&0==T[6+P]&&0==T[7+P]?(b=K*T[0+P]+512>>10,T[0+P]=b,T[1+P]=b,T[2+P]=b,T[3+P]=b,T[4+P]=b,T[5+P]=b,T[6+P]=b,T[7+P]=b):(f=K*T[0+P]+128>>8,h=K*T[4+P]+128>>8,d=T[2+P],p=T[6+P],m=2896*(T[1+P]-T[7+P])+128>>8,y=2896*(T[1+P]+T[7+P])+128>>8,g=T[3+P]<<4,b=f-h+1>>1,f=f+h+1>>1,h=b,b=3784*d+1567*p+128>>8,d=1567*d-3784*p+128>>8,p=b,b=m-(v=T[5+P]<<4)+1>>1,m=m+v+1>>1,v=b,b=y+g+1>>1,g=y-g+1>>1,y=b,b=f-p+1>>1,f=f+p+1>>1,p=b,b=h-d+1>>1,h=h+d+1>>1,d=b,b=2276*m+3406*y+2048>>12,m=3406*m-2276*y+2048>>12,y=b,b=799*g+4017*v+2048>>12,g=4017*g-799*v+2048>>12,v=b,T[0+P]=f+y,T[7+P]=f-y,T[1+P]=h+v,T[6+P]=h-v,T[2+P]=d+g,T[5+P]=d-g,T[3+P]=p+m,T[4+P]=p-m)}for(I=0;I<8;++I){var A=I;0==T[8+A]&&0==T[16+A]&&0==T[24+A]&&0==T[32+A]&&0==T[40+A]&&0==T[48+A]&&0==T[56+A]?(b=K*k[I+0]+8192>>14,T[0+A]=b,T[8+A]=b,T[16+A]=b,T[24+A]=b,T[32+A]=b,T[40+A]=b,T[48+A]=b,T[56+A]=b):(f=K*T[0+A]+2048>>12,h=K*T[32+A]+2048>>12,d=T[16+A],p=T[48+A],m=2896*(T[8+A]-T[56+A])+2048>>12,y=2896*(T[8+A]+T[56+A])+2048>>12,g=T[24+A],b=f-h+1>>1,f=f+h+1>>1,h=b,b=3784*d+1567*p+2048>>12,d=1567*d-3784*p+2048>>12,p=b,b=m-(v=T[40+A])+1>>1,m=m+v+1>>1,v=b,b=y+g+1>>1,g=y-g+1>>1,y=b,b=f-p+1>>1,f=f+p+1>>1,p=b,b=h-d+1>>1,h=h+d+1>>1,d=b,b=2276*m+3406*y+2048>>12,m=3406*m-2276*y+2048>>12,y=b,b=799*g+4017*v+2048>>12,g=4017*g-799*v+2048>>12,v=b,T[0+A]=f+y,T[56+A]=f-y,T[8+A]=h+v,T[48+A]=h-v,T[16+A]=d+g,T[40+A]=d-g,T[24+A]=p+m,T[32+A]=p-m)}for(I=0;I<64;++I){var B=128+(T[I]+8>>4);x[I]=B<0?0:255<B?255:B}for(var D=0,S=c<<3,L=0;L<8;++L)for(var E=t[s+L],z=0;z<8;++z)E[S+z]=l[D++]}}return t}function D(n){return n<0?0:255<n?255:n}function Gn(n,e,t){var r,a=[];if(0<=n)for(r=0;r<n;++r)a.push(e[t.pos++]);else for(r=0;n<r;--r)a.push(e[t.pos++]);return a}En[n]={constructor:En,parse:function(e){var t=0;e.length;function n(){var n=e[t]<<8|e[t+1];return t+=2,n}var r,a,o=null,i=null,l=[],u=[],s=[],c=[],f=n();if(65496!=f)throw"SOI not found";for(f=n();65497!=f;){switch(f){case 65280:break;case 65504:case 65505:case 65506:case 65507:case 65508:case 65509:case 65510:case 65511:case 65512:case 65513:case 65514:case 65515:case 65516:case 65517:case 65518:case 65519:case 65534:void 0,L=void 0,L=n(),L=e.subarray(t,t+L-2),t+=L.length;65504===f&&74===L[0]&&70===L[1]&&73===L[2]&&70===L[3]&&0===L[4]&&(o={version:{major:L[5],minor:L[6]},densityUnits:L[7],xDensity:L[8]<<8|L[9],yDensity:L[10]<<8|L[11],thumbWidth:L[12],thumbHeight:L[13],thumbData:L.subarray(14,14+3*L[12]*L[13])}),65518===f&&65===L[0]&&100===L[1]&&111===L[2]&&98===L[3]&&101===L[4]&&0===L[5]&&(i={version:L[6],flags0:L[7]<<8|L[8],flags1:L[9]<<8|L[10],transformCode:L[11]});break;case 65499:for(var R=n()+t-2;t<R;){var h=e[t++],d=new 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2:for(t=this.components[0],r=this.components[1],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],l=r.lines[0|f*r.scaleY*T],c=0;c<n;++c)h=i[0|c*t.scaleX*C],A[I++]=h,h=l[0|c*r.scaleX*C],A[I++]=h;break;case 3:for(k=!0,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),t=this.components[0],r=this.components[1],a=this.components[2],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],l=r.lines[0|f*r.scaleY*T],u=a.lines[0|f*a.scaleY*T],c=0;c<n;++c)x=k?(h=i[0|c*t.scaleX*C],d=l[0|c*r.scaleX*C],b=D(h+1.402*((p=u[0|c*a.scaleX*C])-128)),w=D(h-.3441363*(d-128)-.71413636*(p-128)),D(h+1.772*(d-128))):(b=i[0|c*t.scaleX*C],w=l[0|c*r.scaleX*C],u[0|c*a.scaleX*C]),A[I++]=b,A[I++]=w,A[I++]=x;break;case 4:if(!this.adobe)throw"Unsupported color mode (4 components)";for(k=!1,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),t=this.components[0],r=this.components[1],a=this.components[2],o=this.components[3],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],l=r.lines[0|f*r.scaleY*T],u=a.lines[0|f*a.scaleY*T],s=o.lines[0|f*o.scaleY*T],c=0;c<n;++c)k?(h=i[0|c*t.scaleX*C],d=l[0|c*r.scaleX*C],p=u[0|c*a.scaleX*C],m=s[0|c*o.scaleX*C],g=255-D(h+1.402*(p-128)),v=255-D(h-.3441363*(d-128)-.71413636*(p-128)),y=255-D(h+1.772*(d-128))):(g=i[0|c*t.scaleX*C],v=l[0|c*r.scaleX*C],y=u[0|c*a.scaleX*C],m=s[0|c*o.scaleX*C]),A[I++]=g,A[I++]=v,A[I++]=y,A[I++]=m;break;default:throw"Unsupported color mode"}return A},copyToImageData:function(n){var e,t,r,a,o,i,l,u,s=n.width,c=n.height,f=n.data,h=this.getData(s,c),d=0,p=0;switch(this.components.length){case 1:for(t=0;t<c;++t)for(e=0;e<s;++e)r=h[d++],f[p++]=r,f[p++]=r,f[p++]=r,f[p++]=255;break;case 3:for(t=0;t<c;++t)for(e=0;e<s;++e)i=h[d++],l=h[d++],u=h[d++],f[p++]=i,f[p++]=l,f[p++]=u,f[p++]=255;break;case 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P=8*I;0==T[1+P]&&0==T[2+P]&&0==T[3+P]&&0==T[4+P]&&0==T[5+P]&&0==T[6+P]&&0==T[7+P]?(b=K*T[0+P]+512>>10,T[0+P]=b,T[1+P]=b,T[2+P]=b,T[3+P]=b,T[4+P]=b,T[5+P]=b,T[6+P]=b,T[7+P]=b):(f=K*T[0+P]+128>>8,h=K*T[4+P]+128>>8,d=T[2+P],p=T[6+P],m=2896*(T[1+P]-T[7+P])+128>>8,y=2896*(T[1+P]+T[7+P])+128>>8,g=T[3+P]<<4,b=f-h+1>>1,f=f+h+1>>1,h=b,b=3784*d+1567*p+128>>8,d=1567*d-3784*p+128>>8,p=b,b=m-(v=T[5+P]<<4)+1>>1,m=m+v+1>>1,v=b,b=y+g+1>>1,g=y-g+1>>1,y=b,b=f-p+1>>1,f=f+p+1>>1,p=b,b=h-d+1>>1,h=h+d+1>>1,d=b,b=2276*m+3406*y+2048>>12,m=3406*m-2276*y+2048>>12,y=b,b=799*g+4017*v+2048>>12,g=4017*g-799*v+2048>>12,v=b,T[0+P]=f+y,T[7+P]=f-y,T[1+P]=h+v,T[6+P]=h-v,T[2+P]=d+g,T[5+P]=d-g,T[3+P]=p+m,T[4+P]=p-m)}for(I=0;I<8;++I){var A=I;0==T[8+A]&&0==T[16+A]&&0==T[24+A]&&0==T[32+A]&&0==T[40+A]&&0==T[48+A]&&0==T[56+A]?(b=K*k[I+0]+8192>>14,T[0+A]=b,T[8+A]=b,T[16+A]=b,T[24+A]=b,T[32+A]=b,T[40+A]=b,T[48+A]=b,T[56+A]=b):(f=K*T[0+A]+2048>>12,h=K*T[32+A]+2048>>12,d=T[16+A],p=T[48+A],m=2896*(T[8+A]-T[56+A])+2048>>12,y=2896*(T[8+A]+T[56+A])+2048>>12,g=T[24+A],b=f-h+1>>1,f=f+h+1>>1,h=b,b=3784*d+1567*p+2048>>12,d=1567*d-3784*p+2048>>12,p=b,b=m-(v=T[40+A])+1>>1,m=m+v+1>>1,v=b,b=y+g+1>>1,g=y-g+1>>1,y=b,b=f-p+1>>1,f=f+p+1>>1,p=b,b=h-d+1>>1,h=h+d+1>>1,d=b,b=2276*m+3406*y+2048>>12,m=3406*m-2276*y+2048>>12,y=b,b=799*g+4017*v+2048>>12,g=4017*g-799*v+2048>>12,v=b,T[0+A]=f+y,T[56+A]=f-y,T[8+A]=h+v,T[48+A]=h-v,T[16+A]=d+g,T[40+A]=d-g,T[24+A]=p+m,T[32+A]=p-m)}for(I=0;I<64;++I){var D=128+(T[I]+8>>4);x[I]=D<0?0:255<D?255:D}for(var B=0,S=c<<3,L=0;L<8;++L)for(var E=t[s+L],z=0;z<8;++z)E[S+z]=l[B++]}}return t}function B(n){return n<0?0:255<n?255:n}function Gn(n,e,t){var r,a=[];if(0<=n)for(r=0;r<n;++r)a.push(e[t.pos++]);else for(r=0;n<r;--r)a.push(e[t.pos++]);return a}En[n]={constructor:En,parse:function(e){var t=0;e.length;function n(){var n=e[t]<<8|e[t+1];return t+=2,n}var r,a,o=null,i=null,l=[],u=[],s=[],c=[],f=n();if(65496!=f)throw"SOI not found";for(f=n();65497!=f;){switch(f){case 65280:break;case 65504:case 65505:case 65506:case 65507:case 65508:case 65509:case 65510:case 65511:case 65512:case 65513:case 65514:case 65515:case 65516:case 65517:case 65518:case 65519:case 65534:void 0,L=void 0,L=n(),L=e.subarray(t,t+L-2),t+=L.length;65504===f&&74===L[0]&&70===L[1]&&73===L[2]&&70===L[3]&&0===L[4]&&(o={version:{major:L[5],minor:L[6]},densityUnits:L[7],xDensity:L[8]<<8|L[9],yDensity:L[10]<<8|L[11],thumbWidth:L[12],thumbHeight:L[13],thumbData:L.subarray(14,14+3*L[12]*L[13])}),65518===f&&65===L[0]&&100===L[1]&&111===L[2]&&98===L[3]&&101===L[4]&&0===L[5]&&(i={version:L[6],flags0:L[7]<<8|L[8],flags1:L[9]<<8|L[10],transformCode:L[11]});break;case 65499:for(var R=n()+t-2;t<R;){var h=e[t++],d=new Int32Array(64);if(h>>4==0)for(z=0;z<64;++z)d[Ln[z]]=e[t++];else{if(h>>4!=1)throw"DQT: invalid table spec";for(z=0;z<64;++z)d[Ln[z]]=n()}l[15&h]=d}break;case 65472:case 65473:case 65474:n(),(r={}).extended=65473===f,r.progressive=65474===f,r.precision=e[t++],r.scanLines=n(),r.samplesPerLine=n(),r.components={},r.componentsOrder=[];var U=e[t++];for(E=0;E<U;++E){var p=e[t],q=e[t+1]>>4,O=15&e[t+1],_=e[t+2];r.componentsOrder.push(p),r.components[p]={h:q,v:O,quantizationIdx:_},t+=3}B=D=A=P=I=T=C=k=w=b=m=x=y=v=g=void 0;var m,g=r,v=0,y=0;for(m in g.components)g.components.hasOwnProperty(m)&&(v<(x=g.components[m]).h&&(v=x.h),y<x.v)&&(y=x.v);var b=Q.ceil(g.samplesPerLine/8/v),w=Q.ceil(g.scanLines/8/y);for(m in g.components)if(g.components.hasOwnProperty(m)){for(var x=g.components[m],k=Q.ceil(Q.ceil(g.samplesPerLine/8)*x.h/v),C=Q.ceil(Q.ceil(g.scanLines/8)*x.v/y),T=b*x.h,I=w*x.v,P=[],A=0;A<I;++A){for(var D=[],B=0;B<T;++B)D.push(new Int32Array(64));P.push(D)}x.blocksPerLine=k,x.blocksPerColumn=C,x.blocks=P}g.maxH=v,g.maxV=y,g.mcusPerLine=b,g.mcusPerColumn=w,u.push(r);break;case 65476:var N=n();for(E=2;E<N;){var X=e[t++],M=new Uint8Array(16),S=0;for(z=0;z<16;++z,++t)S+=M[z]=e[t];var Y=new Uint8Array(S);for(z=0;z<S;++z,++t)Y[z]=e[t];E+=17+S,(X>>4==0?c:s)[15&X]=function(n,e){for(var t,r=0,a=[],o=16;0<o&&!n[o-1];)--o;a.push({children:[],index:0});for(var i,l=a[0],u=0;u<o;++u){for(t=0;t<n[u];++t){for((l=a.pop()).children[l.index]=e[r];0<l.index;)l=a.pop();for(++l.index,a.push(l);a.length<=u;)a.push(i={children:[],index:0}),l.children[l.index]=i.children,l=i;r++}u+1<o&&(a.push(i={children:[],index:0}),l.children[l.index]=i.children,l=i)}return a[0].children}(M,Y)}break;case 65501:n(),a=n();break;case 65498:n();var J=e[t++],j=[];for(E=0;E<J;++E){G=r.components[e[t++]];var H=e[t++];G.huffmanTableDC=c[H>>4],G.huffmanTableAC=s[15&H],j.push(G)}var L=e[t++],V=e[t++],W=e[t++],V=zn(e,t,r,j,a,L,V,W>>4,15&W);t+=V;break;default:if(255==e[t-3]&&192<=e[t-2]&&e[t-2]<=254){t-=3;break}throw"unknown JPEG marker "+f.toString(16)}f=n()}if(1!=u.length)throw"only single frame JPEGs supported";for(var E=0;E<u.length;++E){var z,F=u[E].components;for(z in F)F[z].quantizationTable=l[F[z].quantizationIdx],delete F[z].quantizationIdx}this.width=r.samplesPerLine,this.height=r.scanLines,this.jfif=o,this.adobe=i,this.components=[];for(E=0;E<r.componentsOrder.length;++E){var G=r.components[r.componentsOrder[E]];this.components.push({lines:Fn(0,G),scaleX:G.h/r.maxH,scaleY:G.v/r.maxV})}},getData:function(n,e){var t,r,a,o,i,l,u,s,c,f,h,d,p,m,g,v,y,b,w,x,k,C=this.width/n,T=this.height/e,I=0,P=n*e*this.components.length,A=new Uint8Array(P);switch(this.components.length){case 1:for(t=this.components[0],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],c=0;c<n;++c)h=i[0|c*t.scaleX*C],A[I++]=h;break;case 2:for(t=this.components[0],r=this.components[1],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],l=r.lines[0|f*r.scaleY*T],c=0;c<n;++c)h=i[0|c*t.scaleX*C],A[I++]=h,h=l[0|c*r.scaleX*C],A[I++]=h;break;case 3:for(k=!0,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),t=this.components[0],r=this.components[1],a=this.components[2],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],l=r.lines[0|f*r.scaleY*T],u=a.lines[0|f*a.scaleY*T],c=0;c<n;++c)x=k?(h=i[0|c*t.scaleX*C],d=l[0|c*r.scaleX*C],b=B(h+1.402*((p=u[0|c*a.scaleX*C])-128)),w=B(h-.3441363*(d-128)-.71413636*(p-128)),B(h+1.772*(d-128))):(b=i[0|c*t.scaleX*C],w=l[0|c*r.scaleX*C],u[0|c*a.scaleX*C]),A[I++]=b,A[I++]=w,A[I++]=x;break;case 4:if(!this.adobe)throw"Unsupported color mode (4 components)";for(k=!1,this.adobe&&this.adobe.transformCode?k=!0:void 0!==this.colorTransform&&(k=!!this.colorTransform),t=this.components[0],r=this.components[1],a=this.components[2],o=this.components[3],f=0;f<e;++f)for(i=t.lines[0|f*t.scaleY*T],l=r.lines[0|f*r.scaleY*T],u=a.lines[0|f*a.scaleY*T],s=o.lines[0|f*o.scaleY*T],c=0;c<n;++c)k?(h=i[0|c*t.scaleX*C],d=l[0|c*r.scaleX*C],p=u[0|c*a.scaleX*C],m=s[0|c*o.scaleX*C],g=255-B(h+1.402*(p-128)),v=255-B(h-.3441363*(d-128)-.71413636*(p-128)),y=255-B(h+1.772*(d-128))):(g=i[0|c*t.scaleX*C],v=l[0|c*r.scaleX*C],y=u[0|c*a.scaleX*C],m=s[0|c*o.scaleX*C]),A[I++]=g,A[I++]=v,A[I++]=y,A[I++]=m;break;default:throw"Unsupported color mode"}return A},copyToImageData:function(n){var e,t,r,a,o,i,l,u,s=n.width,c=n.height,f=n.data,h=this.getData(s,c),d=0,p=0;switch(this.components.length){case 1:for(t=0;t<c;++t)for(e=0;e<s;++e)r=h[d++],f[p++]=r,f[p++]=r,f[p++]=r,f[p++]=255;break;case 3:for(t=0;t<c;++t)for(e=0;e<s;++e)i=h[d++],l=h[d++],u=h[d++],f[p++]=i,f[p++]=l,f[p++]=u,f[p++]=255;break;case 4:for(t=0;t<c;++t)for(e=0;e<s;++e)a=h[d++],o=h[d++],r=h[d++],i=255-B(a*(1-(a=h[d++])/255)+a),l=255-B(o*(1-a/255)+a),u=255-B(r*(1-a/255)+a),f[p++]=i,f[p++]=l,f[p++]=u,f[p++]=255;break;default:throw"Unsupported color mode"}}};var Rn=function(n,e){var t=n[e.pos++];return n[e.pos++]|t<<8},h=function(n,e){var t=n[e.pos++],r=n[e.pos++],a=n[e.pos++];return n[e.pos++]|a<<8|r<<16|t<<24};function Un(){}Un[n]={constructor:Un,data:null,pos:null,palette:null,imgData:null,transparency:null,animation:null,text:null,width:0,height:0,bits:null,colorType:null,compressionMethod:null,filterMethod:null,interlaceMethod:null,hasAlphaChannel:null,colors:null,colorSpace:null,pixelBitlength:null,readData:function(n){var e,t,r,a,o,i,l,u,s,c,f=this;for(f.data=n,f.pos=8,f.palette=[],f.imgData=[],f.transparency={},f.animation=null,f.text={},r=null;;){switch(e=h(f.data,f),o=function(){var n,e=[];for(n=0;n<4;++n)e.push(String.fromCharCode(this.data[this.pos++]));return e}.call(f).join("")){case"IHDR":f.width=h(f.data,f),f.height=h(f.data,f),f.bits=f.data[f.pos++],f.colorType=f.data[f.pos++],f.compressionMethod=f.data[f.pos++],f.filterMethod=f.data[f.pos++],f.interlaceMethod=f.data[f.pos++];break;case"acTL":f.animation={numFrames:h(f.data,f),numPlays:h(f.data,f)||q,frames:[]};break;case"PLTE":f.palette=Gn(e,f.data,f);break;case"fcTL":r&&f.animation.frames.push(r),f.pos+=4,r={width:h(f.data,f),height:h(f.data,f),xOffset:h(f.data,f),yOffset:h(f.data,f)},l=Rn(f.data,f),a=Rn(f.data,f)||100,r.delay=1e3*l/a,r.disposeOp=f.data[f.pos++],r.blendOp=f.data[f.pos++],r.data=[];break;case"IDAT":case"fdAT":for("fdAT"===o&&(f.pos+=4,e-=4),n=(null!=r?r.data:void 0)||f.imgData,u=0;0<=e?u<e:e<u;0<=e?++u:--u)n.push(f.data[f.pos++]);break;case"tRNS":switch(f.transparency={},f.colorType){case 3:if(f.transparency.indexed=Gn(e,f.data,f),0<(i=255-f.transparency.indexed.length))for(s=0;0<=i?s<i:i<s;0<=i?++s:--s)f.transparency.indexed.push(255);break;case 0:f.transparency.grayscale=Gn(e,f.data,f)[0];break;case 2:f.transparency.rgb=Gn(e,f.data,f)}break;case"tEXt":a=(l=Gn(e,f.data,f)).indexOf(0),c=String.fromCharCode.apply(String,l.slice(0,a)),f.text[c]=String.fromCharCode.apply(String,l.slice(a+1));break;case"IEND":return r&&f.animation.frames.push(r),f.colors=function(){switch(this.colorType){case 0:case 3:case 4:return 1;case 2:case 6:return 3}}.call(f),f.hasAlphaChannel=4===(c=f.colorType)||6===c,t=f.colors+(f.hasAlphaChannel?1:0),f.pixelBitlength=f.bits*t,f.colorSpace=function(){switch(this.colors){case 1:return"DeviceGray";case 3:return"DeviceRGB"}}.call(f),void(f.imgData=new Uint8Array(f.imgData));default:f.pos+=e}if(f.pos+=4,f.pos>f.data.length)throw new Error("Incomplete or corrupt PNG file")}},decodePixels:async function(n){var e,t,r,a,o,i,l,u,s,c,f,h,d,p,m,g,v,y,b,w,x,k,C,T;if(0===(n=null==n?this.imgData:n).length)return new Uint8Array(0);for(k=n,T={chunkSize:null==C?16384:C},n=await new Promise(function(t){require("zlib").inflate(k instanceof Buffer?k:Buffer.from(k),T,function(n,e){t(n?null:e)})}),p=(c=this.pixelBitlength/8)*this.width,f=new Uint8Array(p*this.height),i=n.length,t=h=d=0;h<i;){switch(n[h++]){case 0:for(a=v=0;v<p;a=v+=1)f[t++]=n[h++];break;case 1:for(a=y=0;y<p;a=y+=1)e=n[h++],o=a<c?0:f[t-c],f[t++]=(e+o)%256;break;case 2:for(a=b=0;b<p;a=b+=1)e=n[h++],r=(a-a%c)/c,m=d&&f[(d-1)*p+r*c+a%c],f[t++]=(m+e)%256;break;case 3:for(a=w=0;w<p;a=w+=1)e=n[h++],r=(a-a%c)/c,o=a<c?0:f[t-c],m=d&&f[(d-1)*p+r*c+a%c],f[t++]=(e+Math.floor((o+m)/2))%256;break;case 4:for(a=x=0;x<p;a=x+=1)e=n[h++],r=(a-a%c)/c,o=a<c?0:f[t-c],0===d?m=g=0:(m=f[(d-1)*p+r*c+a%c],g=r&&f[(d-1)*p+(r-1)*c+a%c]),s=o+m-g,l=Math.abs(s-o),u=Math.abs(s-m),s=Math.abs(s-g),f[t++]=(e+(l<=u&&l<=s?o:u<=s?m:g))%256;break;default:throw new Error("Invalid filter algorithm: "+n[h-1])}d++}return f},decodePalette:function(){for(var n,e,t=this.palette,r=this.transparency.indexed||[],a=new Uint8Array((r.length||0)+t.length),o=0,i=(t.length,0),l=n=0,u=t.length;n<u;l=n+=3)a[o++]=t[l],a[o++]=t[l+1],a[o++]=t[l+2],a[o++]=null!=(e=r[i++])?e:255;return a},copyToImageData:function(n,e){var t,r,a,o,i,l,u,s,c=this,f=c.colors,h=null,d=c.hasAlphaChannel;if(c.palette.length&&(h=null!=(s=c._decodedPalette)?s:c._decodedPalette=c.decodePalette(),f=4,d=!0),l=(t=n.data||n).length,a=h||e,r=o=0,1===f)for(;r<l;)i=h?4*e[r/4]:o,u=a[i++],t[r++]=u,t[r++]=u,t[r++]=u,t[r++]=d?a[i++]:255,o=i;else for(;r<l;)i=h?4*e[r/4]:o,t[r++]=a[i++],t[r++]=a[i++],t[r++]=a[i++],t[r++]=d?a[i++]:255,o=i},decode:async function(){var n=new Uint8Array(this.width*this.height<<2);return this.copyToImageData(n,await this.decodePixels()),n}};var qn=[137,80,78,71,13,10,26,10],On=2,_n=6,Nn={0:1,2:3,3:1,4:2,6:4};function w(n){return Q.max(0,Q.min(255,Q.round(n)))}function Xn(n,e,t){var r=n+e-t,a=Q.abs(r-n),o=Q.abs(r-e),r=Q.abs(r-t);return a<=o&&a<=r?n:o<=r?e:t}function Mn(n,e,t,r,a){n.copy(r,a,e,e+t)}function Yn(n,e,t){for(var r=0,a=e+t,o=e;o<a;o++)r+=Q.abs(n[o]);return r}function Jn(n,e,t,r,a,o){for(var i=0;i<t;i++){var l=o<=i?n[e+i-o]:0,l=n[e+i]-l;r[a+i]=255&l}}function jn(n,e,t,r){for(var a=0,o=0;o<t;o++){var i=r<=o?n[e+o-r]:0,i=n[e+o]-i;a+=Q.abs(i)}return a}function Hn(n,e,t,r,a){for(var o=0;o<t;o++){var i=0<e?n[e+o-t]:0,i=n[e+o]-i;r[a+o]=255&i}}function Vn(n,e,t){for(var r=0,a=e+t,o=e;o<a;o++){var i=0<e?n[o-t]:0,i=n[o]-i;r+=Q.abs(i)}return r}function Wn(n,e,t,r,a,o){for(var i=0;i<t;i++){var l=o<=i?n[e+i-o]:0,u=0<e?n[e+i-t]:0,l=n[e+i]-(l+u>>1);r[a+i]=255&l}}function Qn(n,e,t,r){for(var a=0,o=0;o<t;o++){var i=r<=o?n[e+o-r]:0,l=0<e?n[e+o-t]:0,i=n[e+o]-(i+l>>1);a+=Q.abs(i)}return a}function $n(n,e,t,r,a,o){for(var i=0;i<t;i++){var l=o<=i?n[e+i-o]:0,u=0<e?n[e+i-t]:0,s=0<e&&o<=i?n[e+i-(t+o)]:0,l=n[e+i]-Xn(l,u,s);r[a+i]=255&l}}function Zn(n,e,t,r){for(var a=0,o=0;o<t;o++){var i=r<=o?n[e+o-r]:0,l=0<e?n[e+o-t]:0,u=0<e&&r<=o?n[e+o-(t+r)]:0,i=n[e+o]-Xn(i,l,u);a+=Q.abs(i)}return a}var Kn=null;function ne(n){for(var e=function(){var n,e,t;if(null==Kn)for(Kn=new Int32Array(256),n=0;n<256;++n){for(t=n,e=0;e<8;++e)t=1&t?3988292384^t>>>1:t>>>1;Kn[n]=t}return Kn}(),t=-1,r=0,a=n.length;r<a;++r)t=e[255&(t^n[r])]^t>>>8;return-1^t}function ee(n,e=null,t=0){(e=null==e?Buffer.alloc(1):e)[t=null==t?0:t]=255&n}function te(n,e=null,t=0){return(e=null==e?Buffer.alloc(4):e).writeUInt32BE(4294967295&n,t=null==t?0:t),e}function re(n){if((n=n||{}).deflateChunkSize=Q.max(1024,parseInt(n.deflateChunkSize||32768)),n.deflateLevel=Q.min(9,Q.max(0,parseInt(null!=n.deflateLevel?n.deflateLevel:9))),n.deflateStrategy=Q.min(3,Q.max(0,parseInt(null!=n.deflateStrategy?n.deflateStrategy:3))),n.inputHasAlpha=!(null!=n.inputHasAlpha&&!n.inputHasAlpha),n.bitDepth=8,n.colorType=Q.min(6,Q.max(0,parseInt("number"==typeof n.colorType?n.colorType:_n))),n.colorType!==On&&n.colorType!==_n)throw new Error("option color type:"+n.colorType+" is not supported at present");this._options=n}async function ae(n,e,t,r,a){return a=a||{},"base64"!==n?new re(a).toPNG(e,t,r):f?"data:image/png;base64,"+(await new re(a).toPNG(e,t,r)).toString("base64"):o?(a=(n=document.createElement("canvas")).getContext("2d"),n.width=t,n.height=r,a.createImageData(t,r),(t=a.getImageData(0,0,t,r)).data.set(e,0),a.putImageData(t,0,0),n.toDataURL("image/png")):""}function u(){var t=this,e="",r=0,a=0,o=null,i=function(n){if(!n instanceof Error&&(n=new Error(String(n))),!t.onerror)throw n;t.onerror(n)},l=function(n){var e;if(n)return(e=u.Reader[u.detectImageType(n)])?void e(n).then(function(n){r=(o=n).width,a=n.height,t.onload&&t.onload()}).catch(i):i("Image file type is not supported!")};P(t,"width",{get:function(){return r},set:function(n){}}),P(t,"height",{get:function(){return a},set:function(n){}}),P(t,"naturalWidth",{get:function(){return r},set:function(n){}}),P(t,"naturalHeight",{get:function(){return a},set:function(n){}}),P(t,"src",{get:function(){return e},set:function(n){"undefined"!=typeof ArrayBuffer&&n instanceof ArrayBuffer||"undefined"!=typeof Buffer&&n instanceof Buffer?l(e=n):"undefined"!=typeof Blob&&n instanceof Blob||"undefined"!=typeof Buffer&&Buffer.Blob&&n instanceof Buffer.Blob?(e=n).arrayBuffer().then(l).catch(i):("string"==typeof n||n instanceof String)&&(/^data:image\/[a-z]+;base64,/.test(n)?l(function(n){if("undefined"!=typeof Buffer)return Buffer.from(n,"base64");if("function"==typeof atob){for(var e=atob(n),t=e.length,r=new Uint8Array(t),a=0;a<t;++a)r[a]=e.charCodeAt(a);return r.buffer}}((e=n).slice(n.indexOf(";base64,")+8))):f&&require("fs").readFile(e=n,function(n,e){n?i(n):l(e)}))}}),t.getImageData=function(){return o}}function nn(e,t){var r,a,o,n=this;if(!(n instanceof nn))return new nn(e,t);o=function(){e=e||0,t=t||0,a&&a.dispose(),r={width:e,height:t,data:new E(e*t<<2)},a=new F(e,t,F.setRGBATo(r))},P(n,"width",{get:function(){return e},set:function(n){!A(n=+n)&&D(n)&&0<=n&&e!==n&&(e=n,o())}}),P(n,"height",{get:function(){return t},set:function(n){!A(n=+n)&&D(n)&&0<=n&&t!==n&&(t=n,o())}}),n.getContext=function(n){return a.getContext(n)},n.toDataURL=async function(n,e){return ae("base64",r.data,r.width,r.height)},n.toBlob=function(e){var t;"function"==typeof e&&(t="undefined"!=typeof Blob?Blob:"undefined"!=typeof Buffer&&Buffer.Blob?Buffer.Blob:null)&&ae("binary",r.data,r.width,r.height).then(function(n){e(new t([n],{type:"image/png"}))}).catch(W)},n.toPNG=async function(){return ae("binary",r.data,r.width,r.height)},o()}return re[n]={_options:null,constructor:re,toPNG:async function(n,e,t){var r,a,o=[];if(o.push(Buffer.from(qn)),o.push(this.packIHDR(e,t)),this._options.gamma&&o.push(this.packGAMA(this._options.gamma)),n=this.filterData(Buffer.from(n),e,t),e=this.getDeflateOptions(),r=n,t=e.level,n=e.chuckSize,a={chunkSize:null==n?16384:n},null!=t&&(a.level=t),(e=await new Promise(function(t){require("zlib").deflate(r instanceof Buffer?r:Buffer.from(r),a,function(n,e){t(n?null:e)})}))&&e.length)return o.push(this.packIDAT(Buffer.from(e))),e=null,o.push(this.packIEND()),Buffer.concat(o);throw new Error("bad png - invalid compressed data response")},getDeflateOptions:function(){return{chunkSize:this._options.deflateChunkSize,level:this._options.deflateLevel,strategy:this._options.deflateStrategy}},filterData:function(n,e,t){return this._filter(this._bitPack(n,e,t),e,t)},packIHDR:function(n,e){var t=Buffer.alloc(13);return te(n,t,0),te(e,t,4),ee(this._options.bitDepth,t,8),ee(this._options.colorType,t,9),ee(0,t,10),ee(0,t,11),ee(0,t,12),this._packChunk(1229472850,t)},packGAMA:function(n){return this._packChunk(1732332865,te(Q.floor(1e5*parseFloat(n))))},packIDAT:function(n){return this._packChunk(1229209940,n)},packIEND:function(){return this._packChunk(1229278788,null)},_bitPack:function(n,e,t){var r=this._options.inputHasAlpha,a=this._options.colorType===_n;if(r&&a)return n;if(!r&&!a)return n;for(var o,i,l,u,s,c=a?4:3,f=Buffer.alloc(e*t*c),h=r?4:3,d=0,p=0,m=this._options.bgColor||{},g=w(null!=m.red?m.red:255),v=w(null!=m.green?m.green:255),y=w(null!=m.blue?m.blue:255),b=0;b<t;b++)for(o=0;o<e;o++)i=n[d],l=n[d+1],u=n[d+2],r?(s=n[d+3],a||(i=(1-(s/=255))*g+s*i,l=(1-s)*v+s*l,u=(1-s)*y+s*u)):s=255,f[p]=w(i),f[p+1]=w(l),f[p+2]=w(u),a&&(f[p+3]=w(s)),d+=h,p+=c;return f},_filter:function(n,e,t){for(var r,a,o,i=[Mn,Jn,Hn,Wn,$n],l=[Yn,jn,Vn,Qn,Zn],u=[0],s=Nn[this._options.colorType],c=e*s,f=0,h=0,d=Buffer.alloc((1+c)*t),p=u[0],m=u.length,g=0;g<t;g++){if(1<m)for(a=1/0,r=0;r<m;r++)(o=l[u[r]](n,h,c,s))<a&&(p=u[r],a=o);i[d[f]=p](n,h,c,d,++f,s),f+=c,h+=c}return d},_packChunk:function(n,e){var t=e?e.length:0,r=Buffer.alloc(t+12);return te(t,r,0),te(n,r,4),e&&e.copy(r,8),[t,n=null,e]=[ne(r.slice(4,r.length-4)),r,r.length-4],(n=null==n?Buffer.alloc(4):n).writeInt32BE(t,e=null==e?0:e),r}},u[n]={constructor:u,width:0,height:0,naturalWidth:0,naturalHeight:0,src:"",onload:null,onerror:null,getImageData:null},u.Reader={NOT_SUPPORTED:null,GIF:async function(n,e){var a,o=null,i={width:0,height:0,data:null};return Sn(new Bn(new Uint8Array(n)),{hdr:function(n){a=n},gce:function(n){o=n.transparencyGiven?n.transparencyIndex:null},img:function(n){var t=n.lctFlag?n.lct:a.gct,r=new E(n.width*n.height<<2);n.pixels.forEach(function(n,e){e<<=2;n!==o&&(r[e]=t[n][0],r[1+e]=t[n][1],r[2+e]=t[n][2],r[3+e]=255)}),i.width=n.width,i.height=n.height,i.data=r}}),i},JPG:async function(n,e){var t=new En;return t.parse(new Uint8Array(n)),n={width:t.width,height:t.height,data:new Uint8Array(t.width*t.height<<2)},t.copyToImageData(n),n},PNG:async function(n,e){var t=new Un;return t.readData(new Uint8Array(n)),{width:t.width,height:t.height,data:await t.decode()}}},u.detectImageType=function(n){function e(n){return n<t.length?t[n]:0}var t=new Uint8Array(n[n.subarray?"subarray":"slice"](0,8));return 137===e(0)&&80===e(1)&&78===e(2)&&71===e(3)&&13===e(4)&&10===e(5)&&26===e(6)&&10===e(7)?"PNG":71!==e(0)||73!==e(1)||70!==e(2)||56!==e(3)||55!==e(4)&&57!==e(4)||97!==e(5)?255===e(0)&&216===e(1)?"JPG":"NOT_SUPPORTED":"GIF"},nn[n]={constructor:nn,width:0,height:0,getContext:null,toDataURL:null,toBlob:null,toPNG:null},nn.VERSION="0.9.92r2",nn.Image=u,nn.RenderingContext2D=F.RenderingContext2D,nn});
\ No newline at end of file
diff --git a/src/Gradient.js b/src/Gradient.js
index 4b41884..98f7f50 100644
--- a/src/Gradient.js
+++ b/src/Gradient.js
@@ -48,37 +48,16 @@ function Gradient(grad_color_at)
     self.getColorAt = function(x, y) {
         var im = transform.imatrix(true),
             p = im ? im.transform(x, y) : null,
-            rgba = new ImArray(4);
+            rgba = [0, 0, 0, 0];
         return p ? grad_color_at(p[0], p[1], colorStops(), rgba, 0) : rgba;
     };
-    self.getBitmap = function(width, height) {
-        width = stdMath.round(width);
-        height = stdMath.round(height);
-        var imatrix = transform.imatrix(true),
-            color_stops,
-            i, x, y, p,
-            size = (width*height) << 2,
-            bmp = new ImArray(size);
-        if (imatrix)
-        {
-            color_stops = colorStops();
-            for (x=0,y=0,i=0; i<size; i+=4,++x)
-            {
-                if (x >= width) {x=0; ++y;}
-                p = imatrix.transform(x, y);
-                grad_color_at(p[0], p[1], color_stops, bmp, i);
-            }
-        }
-        return bmp;
-    };
 }
 Gradient.VERSION = "1.2.3";
 Gradient[PROTO] = {
     constructor: Gradient,
     transform: null,
     addColorStop: null,
-    getColorAt: null,
-    getBitmap: null
+    getColorAt: null
 };
 Gradient.createLinearGradient = function(x1, y1, x2, y2) {
     x1 = x1 || 0;
@@ -221,38 +200,20 @@ function Pattern(pat_color_at)
         configurable: false
     });
     self.getColorAt = function(x, y) {
-        var im = transform.imatrix(true), p, rgba = new ImArray(4);
+        var im = transform.imatrix(true), p, rgba = [0, 0, 0, 0];
         if (im)
         {
             p = im.transform(x, y);
             pat_color_at(p[0], p[1], rgba, 0);
         }
+        rgba[3] /= 255;
         return rgba;
     };
-    self.getBitmap = function(width, height) {
-        width = stdMath.round(width);
-        height = stdMath.round(height);
-        var imatrix = transform.imatrix(true),
-            i, x, y, p,
-            size = (width*height) << 2,
-            bmp = new ImArray(size);
-        if (imatrix)
-        {
-            for (x=0,y=0,i=0; i<size; i+=4,++x)
-            {
-                if (x >= width) {x=0; ++y;}
-                p = imatrix.transform(x, y);
-                pat_color_at(p[0], p[1], bmp, i);
-            }
-        }
-        return bmp;
-    };
 }
 Pattern[PROTO] = {
     constructor: Pattern,
     transform: null,
-    getColorAt: null,
-    getBitmap: null
+    getColorAt: null
 };
 Pattern.createPattern = function(imageData, repetition) {
     if (imageData && ('function' === typeof imageData.getImageData)) imageData = imageData.getImageData();
@@ -467,7 +428,7 @@ function interpolatePixel(pixel, index, rgba0, rgba1, t)
     pixel[index + 0] = clamp(stdMath.round(rgba0[0] + t*(rgba1[0] - rgba0[0])), 0, 255);
     pixel[index + 1] = clamp(stdMath.round(rgba0[1] + t*(rgba1[1] - rgba0[1])), 0, 255);
     pixel[index + 2] = clamp(stdMath.round(rgba0[2] + t*(rgba1[2] - rgba0[2])), 0, 255);
-    pixel[index + 3] = 3 < rgba0.length ? clamp(stdMath.round(255*(rgba0[3] + t*(rgba1[3] - rgba0[3]))), 0, 255) : 255;
+    pixel[index + 3] = 3 < rgba0.length ? clamp(rgba0[3] + t*(rgba1[3] - rgba0[3]), 0, 1) : 1;
     return pixel;
 }
 var hexRE = /^#([0-9a-fA-F]{3,6})\b/,
diff --git a/src/Rasterizer.js b/src/Rasterizer.js
index b62916b..83f7d7d 100644
--- a/src/Rasterizer.js
+++ b/src/Rasterizer.js
@@ -233,7 +233,7 @@ function RenderingContext2D(width, height, set_rgba_at, get_rgba_from)
         set: function(c) {
            if (c instanceof Gradient || c instanceof Pattern)
            {
-               get_stroke_at = Rasterizer.getRGBAFrom(c.getColorAt.bind(c));
+               get_stroke_at = c.getColorAt.bind(c);
            }
            else
            {
@@ -248,7 +248,7 @@ function RenderingContext2D(width, height, set_rgba_at, get_rgba_from)
         set: function(c) {
            if (c instanceof Gradient || c instanceof Pattern)
            {
-               get_fill_at = Rasterizer.getRGBAFrom(c.getColorAt.bind(c));
+               get_fill_at = c.getColorAt.bind(c);
            }
            else
            {