Can someone suggest a theme for the weather-forecast-applet that has a more transparent background?

All widgets on my desktop are bright blue with this new theme but this applet is still dark - even after a reboot.

Thanks for the springlike theme, it fits well to the sunny weather here in Germany!

Edit: Ah, it seems that I confused the OMWeather widget (that supports different icon themes) with the ForecaWeather Widget (which doesn't support different themes). So I have to live with the black blob on my screen...