You can add more pencil shapes to the program, as well as new "tiles" (what i'd call "patterns", and some would call "aslkgjrtkyddsa", which i think is silly).
You create a folder called "pen" on the graphics gale instalation dir, create your pencil image in a
2-bit 1 bit*, 32x32 image in only pure black and white (one will mask, the other will lay pixels), and save it on that dir,
as a bitmap .bmp (any name will do). To add new tiles, i know you can only do it at 16x16, similar process, but i don't really remember the details on this. It's in the documentation, although somewhat obscuredly hidden.
To check how (or if) this can be done, go to your Graphics Gale help file,
Select "Contents",
"4 - Exposition of screen",
And click on the palette and tools floating bar (middle of the screen, on the right).
A bigger image of this floating toolbar should appear, and you would click on the brush size zone, or below, on the tile (pattern) zone.
You're redirected to a screen which says:
"Pen - Chooses a shape of a pen. A pen can also be made."
Click on "a pen can also be made" link, and you're sent to a page which has that info somewhere in that screen. It says:
Reload Pen/Tile
Reloads pens and tiles user made.
Pens and tiles must be BMP file, and must be placed in the folder named "pen" in GraphicsGale's folder. (ex. c:\Program Files\GraphicsGale\Pen)
Besides, the BMP must be a monochrome(1bit), the size of a pen must be 32x32, and the size of a tile must be 16x16.
In a pen, white area will put a color in the canvas. In a tile, white area will be replaced with the first color, and black area will be replaced with the second color.
Enjoy it!
This is how i added 2px wide pencils, spray brush type, and new dithering patterns, therefore becoming the proverbial "bom".
* thanks Eyecraft