Can I add color to bootstrap icons only using CSS?

Question

Twitter's bootstrap uses Icons by Glyphicons. They are "available in dark gray and white" by default:

Is it possible to use some CSS trickery to change the colors of the icons? I was hoping for some other css3 brilliance that would prevent having to have an icon image set for each color.

I know you can change the background color of the enclosing (<i>) element, but I'm talking about the icon foreground color. I guess it would be possible to inverse the transparency on the icon image and then set the background color.

So, can I add color to bootstrap icons only using CSS?

Answer 1

This is all a bit roundabout..

I've used the glyphs like this

  </div>
        <div class="span2">
            <span class="glyphicons thumbs_up"><i class="green"></i></span>
        </div>
        <div class="span2">
            <span class="glyphicons thumbs_down"><i class="red"></i></span>
        </div>

and to affect the color, i included a bit of css at the head like this

<style>
        i.green:before {
            color: green;
        }
        i.red:before {
            color: red;
        }
    </style>

Voila, green and red thumbs.

Answer 2

Also works with the style tag:

<span class="glyphicon glyphicon-ok" style="color:#00FF00;"></span>

<span class="glyphicon glyphicon-remove" style="color:#FF0000;"></span>