If you uncheck the option Apply all theme settings under 1-click themes in the phone app, you will be able to add components of various watch face themes PLUS: you can also modify their color:
► change the color of clock dials and hands
► change the color of themed bubble
► NEW in v8.94: change the color of background graphics too!
This video shows how this is done: https://youtu.be/eVtG6X8AQBA
This makes the theme packs even more versatile. See the examples below: