For use with VCV rack, you will have to copy the hex codes and all that from the rightmost pane, and paste it in a certain rack configuration file.
The file can be found windows: C:\Users\danske_mario\AppData\Local\Rack2\settings.json
or on macos: /Users/danske_mario/Library/Application\ Support/Rack2/settings.json
or on linux: i have no idea lol? check ~/.rack2 maybe?
Make sure vcv rack is CLOSED when you save the file. It will overwrite it when closed - but read it when opened. So you have to edit it while it's not running.
Search for cableColors in there and replace it with your new color scheme. (Don't worry about the label count being mismatched.)