Make Old Scool Maps in GIMP w/ MarkGosbell's Assets

Below is a zip with the brushes and template file.

DOWNLOAD

https://drive.google.com/file/d/1pECInkeX0ofGDIYxyNkzmUgHuj-Vrmme/view?usp=sharing

(I'm aware the brush names are all prepended with something—but it still has the asset name)

These map symbols were made and generously  released into the public domain by Mark Gosbell. A bit thank you and all credit to Mark!
The GNU Image Manipulation Program (GIMP) is free and open-source.

Set-up

1.     Find the folder where GIMP stores brushes

2.     Drag the "classic" folder into the selected folder for brushes (box is checked). You need to either restart GIMP or right-click on brushes and click refresh.

3.     Enable Show Grid, Snap to Grid, and Snap to Guide  

4.     The assets made by Mark Gosbell work best when the brush size is locked to 150px (this is only when stamping the symbols).

The template I made has a:

• Grid layer, currently set to 50% opacity, 150px grid
• Two blank layers, walls and symbols
• A grid set to 1/2 the size of the Grid layer (75px), so we have 1/2 snapping to place objects in the center of squares.
• 1/2 margin on US Letter paper.

My recommended workflow is:

1. Draw walls on wall layer (note the symbols are a slightly off-black color, make your walls the same color or adjust the image when finished). 
2. Right-click duplicate wall layer when you're done with the walls.
3. Add symbols & text as your heart desires. 
4. When the pictures looks like the below, Fill in the outside off the walls on the higher wall layer. Use the same off-black color.

    5. Set grid opacity to 100%. For printer-friendly maps, leave grid at 50% and Fill w/ white.

• I've noticed that when snapping is on, dragging the Paintbrush tool w/ the pixel brush at a certain speed creates a cave-wall look I like. You can also play w/ the Jitter slider. 
• For dungeon walls, click on a corner then, while holding shift, click on another corner.

Again big thanks to Mark, and I'd love to see any maps anyone makes in GIMP.