#383 Icon filters

[Matej Svec]

Whenever I want to choose an icon in settings (for any of the icon settings), there is a filter "*.ico".
However .ico files can be included inside .dll or .exe as well.

[ShadowFlare]

The filter only includes *.ico because it does not support loading icon resources from dll or exe files (special code is needed for this - it is not automatically handled by Windows). The current workaround for this is to manually extract the icons you want by using a resource viewer or editor.