Chord Symbols: Superscript triangle (Maj7) and Non-superscript circle (diminished).

Hello all,

What I'm trying to achieve is in the title :

In my chord symbols, I find the triangle (which means Maj7) too big, I would like it to be superscripted, just like chord extensions. I also find the circle (which means diminished) too small, I would like it to appear normally, as maj, min, and other chord qualities.

I have tried to figure this out by reading everything I could find on this before posting, and this is my first post ever. I see there has been a lot of discussion very recently on similar topics.

(So the triangle is considered a quality, therefore it comes before extensions and modifiers. Personally, I consider it as a kind of extension, because most of the time I just write the root, e.g. "G", leaving up to the musician the choice between a 6 or a Maj7, and specify Maj7 only in specific cases. Whereas the " ° " for dim should not be superscripted in my opinion, because it is undeniably a quality and a crucial piece of information. This is too give my opinion on matters very recently discussed here: https://musescore.org/en/node/298614 and here: https://musescore.org/en/node/288240)

I understand that in order to achieve this, one must modify the .xml file. I have tried this but with no success. I can't find any documentation on how to this. People just say "read the .xml and its comments and figure it out". I'm not a coding expert but I like to go to some trouble figuring out stuff, I used to use Lilypond, but I just can't figure this out. Any help would be greatly appreciated as this giant triangle is really not satisfying me and I am writing for an old musician and I want to be sure he sees the circle for diminished.

Thank you