How to fix the Rainbow Pride SourceTree Icon w/ one Terminal command

[Sterling Bourne]

1. Open Terminal.app
2. Paste this line and press Enter

perl -i -p -e 's/Pridetree/Bridetree/;' /Applications/Sourcetree.app/Contents/Resources/Assets.car

[daniel_verner]

Thank you @Sterling Bourne ! It worked, but I had to use sudo.

Dear Atlassian please keep the pride support to yourselves, don't force us to watch it everyday! Thanks.

[Sterling Bourne]

You are correct in that ThemeEngine does not work on Catalina 10.15. 

[JustaResource]

You can also use the program ThemeEngine to modify the Assets.car file in Sourcetree - or any Mac application for that matter - to change any graphic in the application (as long as it's in the car file).

ThemeEngine may not work on newest versions of OS X though :(