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Some of my icons are not displaying in Chrome on Windows 8.

This is a known issue that is going to be fixed in the next theme update. To fix it yourself in the mean time, edit style.css and locate this code:

/* Chrome hack: SVG is rendered more smooth in Windozze. 100% magic, uncomment if you need it. */
/* Note, that will break hinting! In other OS-es font will be not as sharp as it could be */
/*
@media screen and (-webkit-min-device-pixel-ratio:0) {
  @font-face {
    font-family: 'icons';
    src: url('fonts/icons.svg?40094899#icons') format('svg');
  }
}
*/

Change it to this instead (you're just removing the /* and */ before and after the style):

/* Chrome hack: SVG is rendered more smooth in Windozze. 100% magic, uncomment if you need it. */
/* Note, that will break hinting! In other OS-es font will be not as sharp as it could be */
@media screen and (-webkit-min-device-pixel-ratio:0) {
  @font-face {
    font-family: 'icons';
    src: url('fonts/icons.svg?40094899#icons') format('svg');
  }
}

For Flavor users this would be near line 1502. For Steam users it would be closer to line 1733