Give the flexibility to customize all the Tabs by RGB color (worksheets, dashboards, stories).
Our end user wants to choose RGB color from a color palette.
Tableau end user wants to color their tabs, and they want to choose their favorite color.
These colors may or may not be passed to the T.server (T.online, T.public) after publishing (as colorful tabs on server), but definitely colors should be retained for T.desktop mode.
Based on this original Idea: https://community.tableau.com/ideas/1026
Currently we can choose from 8 colors but nothing more than that.