That’s a good idea. I played around with the CSS to remove the hard-coded color values and replace with theme-selected values and it works, though it’s not that pretty. Find updated release here:
Later, I’ll add the ability to hide the title that holds the city and name, so that you can replace with button-card or something else.
Edit: I should mention that I only tested against this dark theme. If you can share the theme you use, I can take a look at it to make sure it works on your theme.