So I know we have chart colors in the Brand Kit, and several requests are already in the Ideas Exchange for a 'Dark Mode' type feature. If we combine the 2 concepts, you could just let users save their dashboard color configurations.
So, for example, you set up a dashboard with all the colors you want for the dashboard and the card backgrounds like you can now, but then have the option to just 'store' it so you can apply it to other dashboards. It would also be cool if you allow other users that access that dashboard to apply the theme you created or create their own and be able to make the theme available at the URL level. That way, users or administrators can configure their own versions of 'Dark Mode' or company-branded themes and then quickly change them for personal use vs. presentations, apply colors to newly created dashboards, etc.
