I don’t know how this is happening, but I have the following code in muxhistory.ini, and in my lists the glyphs are white as expected, however when a ‘favorite’ is selected on the list, the glyph is black. I don’t know how they can be recoloured differently on the same list but it is happening. I also have the same code in the muxcollect.ini, just mentioning that in case you think it matters.
think of it as adding an overlay on top of a certain color with an alpha channel. if you have it set to 0 you basically put a transparent image on top of your image. where as 255 would be a solid color. with it set to 0 the icons will be whatever color the original images are
all our default icons are black so it could be falling back to a default icon if your theme does not have that icon included. but regardless it doesn’t matter just fix your settings