click or click and hold the mouse to spawn particles, press or press and hold the space bar to spawn particles with randomized locations. change friction slider to change the friction (0 is no friction) the number in the bottom right is the amount of particles on the screen.
since each particle is made of pen and stored in lists, you can have way more than the clone limit. But its harder to code with these particles and i haven't figured out how to do 'particle with particle' collisions.
