Depending on the theme and the visualizations on your report, it might not always go according to how you envision it.
Sometimes, you need to modify it to fit your taste.
All that can be done by selecting a visualization and editing its format.
In our recent imported theme, you can’t view some of the visuals because the background color is filling it up. One of them is the “Total Stores” count visual:
There’s a chance that this was caused by the background color.
To disable its background color, click the visual and go to the ‘Visualizations’ pane on the right corner:
Then, open the ‘Format’ tab and turn the background off:
Doing the same thing to most of the visuals of the report would result in: