I think, we now have to clarify about what we are taking about.
Are we talking about the Search - Match Brace feature, which searches for next open/close and it's closing/opening bracket and selects the brackets and everything between this 2 brackets. The color setting for "Selected Text" and "Sel. Text Background" are used here.
Or are we talking about the Advanced - Configuration - Syntax Highlighting - Auto Brace Matching feature, which simply highlights only the bracket, which belongs to the bracket where the cursor is currently positioned.
I spent about 6 hours some years ago until I have found the color setting, which was best for me. I post here (again) my color settings like they are stored in the ini-file. Maybe this helps you and also someone else to find the best color set for yourself. Backup your ini-file (uedit32.ini) and then modify it with this settings to view my colors. I use the same color settings for all 20 languages.
[Language 1 Colors]
Colors Auto Back=1,1,0,1,1,1,1,1,1,1,1,1,1,