I use some
32x32 *.png icons from IcoMoon-Free pack
IcoMoon-Free is a free vector icon pack by [Keyamoon] http://keyamoon.comAs I noted, "adjust icon colouring" function in Toolbar settings menu is a really great feature.
Icons match the most selected skins
My buttons in v. 3.0 (from above):
1) Locate Selected Track in Windows Explorer
2) Goto Playing Track at Source
3) Toggle Show Equaliser
4) Toggle Show Thumbnail Browser
5) Toggle Show Column Browser
6) Panel Layout: Album Covers
7) Panel Layout: Track Details
8) Panel Layout: Album and Tracks
9-10) Toggle Show Left/Right Panel (yes, i know about bottom bar buttons)
11) Show Lyrics in Floating Window
12) Rescan Monitored Folders
The last one - is default "Configure layout"
here is 12 icons with readme files from the main icon pack
http://www.mediafire.com/download/m3zz4079ccppz7s/Icons.zipor visit
https://icomoon.io to choose your own icons