This is a little mod of Flattr icon theme for Linux, I just change some icons by others :)
Here are the custom color of the theme
Window Background #DCD9DD
Window Text #1A1A1A
Input Boxes Background #D0D0D0
Input Boxes Tex #1A1A1A
Selectem Items Background #56B8D8
Selectem Items Text #F0F0F0
Tooltips Background #F0F0F0
Tooltips Text #1A1A1A
n0oir