Canvas Size - Min 100x100.

 

Colors - 

You need to use 3 or more colors.

A maximum of 3 colors can be placed per line.

2 sets of 3-color line palettes can be held, one for even rows and the other for odd rows.

As an exception, for animation frames or series artworks, changing line palette colors on a per-frame image basis is permitted, but each image must not exceed 6 colors in any case.

 

Transparency - Forbidden.

 

Animation - Optional.