I didn't know those attributes could be paired with what looks like a formatting instruction but I like it - thank you for sharing that!

I haven't yet disassembled MUIA_Background, "" to see what is actually being passed with that attribute but I noticed that the entire area within the window borders becomes highlighted while the string gadget is selected...

Edit: It appears that setting MUIA_ShowSelState to true or false makes no difference...

[ Edited by ausPPC 17.03.2016 - 20:59 ]