It would be nice to be able to see the actual color behind the color directives in css files, for quick identification of colors. For instance, say we have the following css:

.myClass {
    color: #0000FF;
}

It would be nice if the background behind the #0000FF turned blue, showing what that color is. Anywhere colors are recognized, this behavior would hold, not just for the color directive, and not just hex colors, for instance, 

body {
    background-color: yellow;
}

would show a yellow background behind the word yellow. After thinking through it, it might just be enough to highlight the names of the 141 named colors and and strings that match the regex "(?i)#(?:[a-f0-9]{6}|[a-f0-9]{3})" in property values.