Dynamically filling in sections of a coloring page

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:bust_in_silhouette: Asked By kojow7

I am wanting to do something similar to a coloring page where the following happens:

  • the user is presented with a line drawing
  • the user clicks on a color in a colour palette
  • the user clicks in a particular section of that line drawing
  • the particular region of the drawing is filled with that color

What would be an appropriate method for doing this?

UPDATE:

On further investigation it seems to only be a problem when Camera smoothing is turned on.