Can't access imported color theme

[KevinGraham]

I imported a JSON file for a new color theme and got a message to say "The theme was imported successfully".  However, I can't for the life of me find it anywhere.  It's not under the "Switch Theme" dropdown in the menu.  I've tried closing out of the report and restarting PowerBI but to no avail.  Anyone have a similar experience and manage to make it work?  Many thanks.

[Chihiro · Accepted solution]

Once the theme is imported it's already applied to your visuals.

You won't notice any change if there isn't any visual. If that's the case, try adding one and see applied theme.

[KevinGraham]

Thanks for that.  I was thinking about it differently but now it all makes sense.