The ability to choose the brandkit theme on a per dashboard level would be amazing. All our different business units have different branding and we cannot individualise the branding across different dasboards within our DOMO instance.
In general, changing colors of items in charts is cumbersome and clunky. It's great for coloring charts based on the values, but not so dynamic when trying to color via the x axis/category/legend etc. Having to hard-code each individual option isn't fun, quick or intuitive.
TL;DR - Dashboards should be able to select their own themes.