This is a freeware plugin that can be used with the bitmap animation and drawing software 'Pro Motion' to produce highly optimized GIF animations for the web.
Pro Motion is an animation software that contains hundreds of functions to easily create bitmap graphics.

An excerpt of Pro Motion features:
- includes support functions for Gameboy tile graphics
- tons of tools including color cycling, onion skinning, masking, symmetry paint,
tile painting for "infinite" textures-bitmaps and "standard" functions like
line, curve, box, circle, fill (pattern, gradient)
- lots of helpful animation functions like append, save as frames, create animation
out of single images, transition effects (i.e. fading, dissolve), 3d-keyframer
- flexible color palette management with gradients, color remapping/resampling,
color reduction (including dithering)
- supports FLI(r), FLC(rw), PNG(rw), TGA(rw), IFF/LBM(rw), ANIM5(r), PCX(rw), BMP(rw), ANI(animated cursors up to 256 colors rw), ICO (up to 256 colors rw), AVI(rw), JPG(rw)
- free plugins for GIF89a and WBMP ("WAP Bitmap") are available
- almost all keyboard shortcuts can be freely defined.

This program can also be used to create light weight images/animations to be
included with Macromedia Flash or GIF89a animations for the web.