[Lily.Petal]

The reason the text is likely like that is due to it not supporting those characters, so it can't show them and isn't necessarily a stUf issue.

As for mine, you need the button styler to change it visually (if i am reading the addon correctly).

I can't actually view both addons in game so you might have to do most of the leg work, as I currently don't play, but if you look into the media folder of rActionButtonStyler, there is a media folder and in mine a Texture folder.

Rename the appropriate files to match the ones in rActionButtonStyler, override the files in his, and it might work, although there might be a need to edit some parts of the lua file to make them proper.