Lux Draw has futuristic tools that include a 'Glow Pen', a 'Hot Pen', and even 'Light Spheres'! There is also a smudge tool, as well as an ordinary pen and eraser if you prefer that.
Lux Draw supports layers in a way that's very intuitive. You simply choose whether to draw on the foreground, middle ground, or background, and that's it.
- The background/paper color was not exported properly.
- OS X 10.8.2 or later