You can also create your own buttons.
Make a 54x54 image with your base button (black is transparent) then you make a "hover" and "down" version. The final image should be 54x162 with the base button at the top, hover in the middle, and down at the bottom.
Something I did years ago:
[img]http://fc06.deviantart.net/fs71/i/2010/243/3/a/anime_emote_orb_by_kanexalex-d2xo7gh.jpg[/img]
You get the idea.
Make a 54x54 image with your base button (black is transparent) then you make a "hover" and "down" version. The final image should be 54x162 with the base button at the top, hover in the middle, and down at the bottom.
Something I did years ago:
[img]http://fc06.deviantart.net/fs71/i/2010/243/3/a/anime_emote_orb_by_kanexalex-d2xo7gh.jpg[/img]
You get the idea.