Something different but might be useful

I found in internet that example: htmlstacker.com/interactives/examples/library/colouration/index_V.html

I wonder how do it in construct 2 ?

I think it is really easy to make

The colors are invisible circle sprites.

When you overlap a invisible circles with the mouse the circles will made visible.

hmm it might be it, but i must had to put a lot of these objects invisible and the example you can color with very high pixel-precise

my new idea is create objects...

Here my example

http://dl.dropbox.com/u/48415327/draw.capx

wow! your example looks more precise than in my link:) To fill the star you have to create a lot of blue circular objects. Only if in the case of larger surface coloring, the coloring will not display a less smoothly?

The link does not work now

open this link in chrome