_colors.less

// This helper mixin iterates over a comma-separated set;
// calling the .Iteration mixin for each item in the set.
// It must be defined outside the callsite mixin, because
// of https://github.com/less/less.js/issues/2350.
.Loop(@set; @index: length(@set)) when (@index > 0) {	// extract() is one-based
	.Loop(@set; @index - 1);
	.Iteration(extract(@set, @index));	
}


// Calls @callback() with each supported color scheme,
// passing @name ('' for tags that are not languages),
// @baseColor, and @textColor via scoped variables, as
// well as @selector with the CSS selector (which will
// be empty for the default scheme) and @class for the
// classname without dot (for concatenation)
.defineCategoryColors(@callback) {
	// The text color passed for tags that do not define a custom text color.
	@defaultTextColor: #fff;

	// Defines a color scheme without a language name
	.TagTheme(@classes; @baseColor; @textColor: @defaultTextColor)  {
		.LanguageTheme(@classes; ''; @baseColor; @textColor);
	}

	// Defines a color scheme with a language name
	.LanguageTheme(@classes; @name; @baseColor; @textColor: @defaultTextColor) {
		.Loop(@classes);
		.Iteration(@class) {
			// Prepend a dot to classnames, while leaving the default empty.
			// Replace() doesn't work properly on keywords; https://github.com/less/less.js/issues/2351
			@selector: e(replace('@{class}', '(^[a-z])', '.$1'));
			@callback();
		}
	}


	.TagTheme(~''; #5DC4F0; @defaultTextColor);

	.LanguageTheme(cpp;				"C++";			#9fbce1);
	.LanguageTheme(csharp;			"C♯";			#368832);
	.LanguageTheme(css;				"CSS";			#97d8ff;	#131313);
	.LanguageTheme(html;			"HTML";			#e34c26;	#ebebeb);
	.LanguageTheme(java;			"Java";			#e76f00);
	.LanguageTheme(javascript, js;	"Javascript";	#f3df49;	#2e2e2c);
	.LanguageTheme(jekyll, liquid;	"Jekyll";		#fc0;		#333);
	.LanguageTheme(less;			"LESS";			#143352);
	.LanguageTheme(razor;			"Razor";		#e7f4ff;	#000);
	// For syntax highlighting; I use "vbnet" (pygments doesn't recognize vb-net)
	.LanguageTheme(vb-net, vbnet;	"VB.Net";		#00539c);
	.LanguageTheme(xaml;			"XAML";			#378ce9);
	.LanguageTheme(xml;				"XML";			#f60);

	.TagTheme(async, multi-threading;				#ff7700);
	.TagTheme(cryptography, security;				#a90a0a);
	.TagTheme(dot-net;								#3babd0);
	.TagTheme(roslyn;								#68217a);
	.TagTheme(type-theory;							#570000);
		
	.TagTheme(derby-js;								#55b3a6; #f6f0e1);
	.TagTheme(jquery;								#0769ad; #70c8ee);
	.TagTheme(node-js;								#8BC84B; #46483e);
	.TagTheme(socket-io;							#19698a);
	.TagTheme(vs-code, visual-studio-code;			#038fd6);
	
	.TagTheme(visual-studio, visual-studio-2012, visual-studio-2013;	#742894);
	.LanguageTheme(april-fools, errorfree; "ErrorFree"; red);
}