The images and icons of the UI sequences are embedded resources. They can be in `bmp`, `png` or `ico` format.
* [WixUI customization](https://github.com/wixtoolset/wix3/blob/develop/src/chm/documents/wixui/WixUI_customizations.html.md)
* [Original download of the images](https://github.com/wixtoolset/wix3/blob/develop/src/ext/UIExtension/wixlib/Bitmaps/)
* [Declaration of the Images](https://github.com/wixtoolset/wix3/blob/develop/src/ext/UIExtension/wixlib/Common.wxs)
* [Usag…