To create the uninstall_icon.ico file ImageMagick is used. From inside the packaging/nsis folder run:
convert resources/uninstall_icon_16x16.png resources/uninstall_icon_32x32.png resources/uninstall_icon_64x64.png resources/uninstall_icon_128x128.png resources/uninstall_icon_256x256.png resources/uninstall_icon_512x512.png uninstall_icon.icoVerify that the uninstall_icon.ico was successfully created:
identify uninstall_icon.icoThe NSIS installer uses .bmp files for the UI images, specifically BPM Windows 3.x format. To convert the appropriate images to .bmp files run the following command inside the packaging/nsis folder.
convert resources/nsis_header.png BMP3:nsis_header.bmp && convert resources/nsis_install_welcome.png BMP3:nsis_install_welcome.bmp && convert resources/nsis_uninstall_welcome.png BMP3:nsis_uninstall_welcome.bmp