Sketchup file suddenly turn everything to black and white line after removing scene

Hi, after adding scene when thea is running, and i removed scene, everything becomes black and white. i try to add shadow or adjust the equator noon time but nothing happened, what happen?

The style has been edited but not updated. Go into the In Model styles and select the Architectural Design Style.
Screenshot - 10_23_2021 , 11_18_59 AM

Thanks so much DaveR, it solves the problem. Just curious, I’ve never tried changing the styles before, how does it change the style?

I don’t know. It might have something to do with Thea but as I don’t have Thea I can’t say.

How do you use Thea with SketchUp Free (web)?