You’ll see a screen asking if you want to “Copy document”. Click Make a copy

Link to the base content (read only)
Click the “Share” button and change the sharing persmissions to “Anyone with the link.” (You need to do this so The Zone has access to the spreadsheet)

Setup tabmodName to My First Mod#COLOR THEME section (in this gif I grab the aquatic theme)
Wondering if you did it correctly? Here is a spreadsheet with these changes applied.
Load a mod to open that panelload