Follow previous advise - First.
The 3 icons, Red, Orange and Green at coded into the Operating System.
To alter, modify or otherwise attempt to adjust them would require accessing the Sealed and Read Only Volume that can not be opened by the User nor by Third Party Applications.
The only Entity that can open and modify or alter this Volume is Apple.
That would occur when a update or UpGrade is performed.
If either of the Suggestions put forth are not to the liking of the User >>
Then have a few suggestions ;
1 - Get Support Choose a product and we’ll find you the best solution.Start now and open an Apple Support Ticket as they are Apple Employees to deal will these types of issues .
2 - Product Feedback - Apple and make it known to Apple regarding this issue and ask apple to Re-code the Operating System