phone_icon_overlay is defined in phone_gui.rpy. I must have left a reference to it inside the actual phone.rpy... and....
Yep, delete line 3410 and line 3411!
And make sure you remove it from ikps_phone_home_back_action in phone config too if youre not using my GUI
If it keeps happening just create a screen with that name that does nothing, it wont break anything ;D
As for changing the name.... thats the _title of the phone shell when you open a contact, or on the contacts screen. You'd need to set the name they choose to a variable, and on the chat screen run a check when _title is set, if _title == 'mc', set it to the name that was chosen instead. line 1991 I believe.....
Same thing for the contacts screen when it shows the names for the contacts, which happens at 2667.
Those lines might be off a little, I'm not sure if the version im looking at is the currently uploaded one, let me know if it's wrong and i can look properly
I have been working on a release that does this plus a load more stuff but I've been roped into making 3 different games so my time is... limited rn :')