Erase all of a color

Hello,

I recently switched over to Fresco from Draw. Is there the ability to erase/clear all of a color on a layer in Fresco?

The situation: I am drawing in vector. Have a layer that is all blue. I started a new layer and drew some fancy yellow designs on it. Somewhere along the way, I ended up back on the blue layer and didn't realize it. Now half of my designs are on a new layer and half of them are on the blue. I really don't want to have to redraw them all. In Draw, with the erase tool selected, you could press & hold on a color in your drawing and all of that color (that was connected) would be erased. So I would just duplicate the layer and erase all of the blue and ta-da! only the yellow designs are left. Can you do something like that in Fresco?? In the end I can always just trace the designs onto a new layer, but I really would like to know if this is possible for future things. 

Thank you