Algodoo

This is my last scene improved.
- new smoke and fire colors;
- random.normal2D to substitute that complicated thing to make it looks random;
- changeable color, as the title says.

Change the colors of the smoke/fire by changing the colors of those two circles attached to the thruster-box.

Hint: add water and fly over it, it is a good effect. Or maybe add little boxes with low density...

The thruster-box is the same, I'm not giving attention to it, I know it is ugly.