I am in several different Slack communities, and it's literally impossible to get them to all look the same, from a theme standpoint. Even exporting theme colors from one instance into another yields different colors.
@tony the "new" Slack UI is awful
@km8v yeah, there are ways to make it less crappy, you can at least turn off the junky gradients, but every workspace is a different color scheme.
@tony I don't need multiple vertical navs either, but you can't get rid of the thing with the icons, which is super annoying.