For report creators that are unfamiliar with JSON or where reports need specific modifications, managing themes can be challenging. A probable and promising solution could be to allow report creator...
It is quite difficult to find a compromise for theme colors for both stacked bars (for example) where one needs to have distinct colors versus other charts where shades of the same color make more sense (there are only 8 colors, and we cannot specify which colors are to be used for a specific type of visual). Maybe this could be addressed via custom styles. It is so painful right now to create a theme that saves later manual interventions.
