Hi !
I'm developing this mod: https://mods.factorio.com/mod/GUI_Unifyer which is trying to make all the top icons in the same style
Anyway, I'm trying to do a check to see if a main frame is opened, but your mod is one of the rare ones where the frames are not named.
Could you add a name to the main window? (so adding 'name = "mymod_main_frame",') so that it improves the general compatibility?
Thanks in advance!