To made 7Zip File Manager support Multi-Color toolbar image, you need just change one line code: File name: 7zip\FileManager\App.cpp Line 152, Change original code imageList.Create( LargeButtons ? 48: 24, LargeButtons ? 36: 24, ILC_MASK, 0, 0); to imageList.Create( LargeButtons ? 48: 24, LargeButtons ? 36: 24, ILC_COLORDDB | ILC_MASK, 0, 0); Then compile it, you will get a your own edition with Multi-Color toolbar support. The attachment is the result I compiled, and I replaced the image of "Add" and "Test" button with Multi-Color image to show the affect. Just download and replace the official 7ZFM.exe with this one. I hope that someone could create a beautiful file manager by multi-color images Enjoy it! 7zFM_Support_MultiColor.zip