feature:background and font color(Github Dark Mode)

package.json

@@ -102,6 +102,16 @@
           "type": "string",
           "default": "background: white;",
           "description": "Optional style for rendered display SVG equations. (Only supported when inserting as HTML)"
+        },
+        "vscode-math-to-image.backgroundColor": {
+          "type": "string",
+          "default": "white",
+          "description": "Optional background color for rendered equations. (Only supported when inserting as HTML)"
+        },
+        "vscode-math-to-image.fontColor": {
+          "type": "string",
+          "default": "black",
+          "description": "Optional font color for rendered equations. (Only supported when inserting as HTML)"
         }
       }
     }

src/extension.ts

@@ -164,6 +164,12 @@ function insertMathImage(renderedImagePath: string, start: vscode.Position, end:
   vscode.window.showInformationMessage(`Render equation successfully!`)
 }
 
+function setSvgColor(equation: string) {
+  const fontColor = vscode.workspace.getConfiguration().get("vscode-math-to-image.fontColor")
+  const backgroundColor = vscode.workspace.getConfiguration().get("vscode-math-to-image.backgroundColor")
+  return `\\color{${fontColor}}\\bbox[${backgroundColor}]{${equation}}`
+}
+
 /**
  * Render function to insert image form of the selected equation into current editor
  *
@@ -183,7 +189,7 @@ function renderEntry(renderType: RenderType) {
   } else {
     if (displayMath.test(selection)) {
       // Remove leading $$ and trailing $$
-      const equation = selection.split('\n').slice(1, -1).join('\n')
+      const equation = setSvgColor(selection.split('\n').slice(1, -1).join('\n'))
 
       const renderedImage =
         renderType === RenderType.REMOTE
@@ -192,7 +198,7 @@ function renderEntry(renderType: RenderType) {
       insertMathImage(renderedImage, selectionStart, selectionEnd, MathType.DISPLAY)
     } else if (inlineMath.test(selection)) {
       // Remove leading $ and trailing $
-      const equation = selection.slice(1, -1).trim()
+      const equation = setSvgColor(selection.slice(1, -1).trim())
 
       const renderedImage =
         renderType === RenderType.REMOTE