You can now use the material icons in the Font Awesome class style, next to Google's semantic notation:
<span class="gmdi gmdi-thumb_up"></span>
<span class="gmdi">thumb_up</span>
The gmdi namespace can easily be adjusted to your taste by overriding the @gmdi-css-prefix variable after importing:
@import '[path to LESS files]/google-material-design-icons';
@gmdi-css-prefix: mi;
The sizing works a bit different than Font Awesome. The default size for material icons is 24px, with three extra sizes. Because of this fixed size constraint instead of relative units, some things work differently (see the Notes section). So the sizing works with the following extra classes:
.gmdi-sm= 18px.gmdi-lg= 36px.gmdi-2x= 48px
The following extra's from Font Awesome are supported:
Setting vertical align to middle works well for centering icons with fixed font sizes. This is enabled by default, but can be disbaled by overriding a variable after import:
@import '[path to LESS files]/google-material-design-icons';
@gmdi-vertical-center: 0; // default is 1
Although list icons are supported, the icons will usually not come out right due to font sizing issues. Unless you use a text font size of 18/24/etc. Adding size classes to list icons is not supported, because of the pixel value constraint on the font sizes.
Although the stacking mechanism works, there aren't many useful basic shapes available to make good use of it.
The icons are up to date with v2.0.0 of the material set.