Styletest: 19th century historical map

[Freodin]

The basic method is always the same... have the pattern, do some kind of mask to define where it shows, put some solid coloured lines above it. It is just a question of what tools to use.

I found my "new" method - described in the longer "mini tutorial" post - to be more efficient.
First, with the Layer Effects method, I have to make an alpha mask of all the areas involved instead of simply selecting them from an easy made template.
Second, it is quicker to just change the brush size for the second (solid border) pass than change all the necessary values in the "Inner Glow" dialogue.
Third, with stroking a path or selection, you can use irregularities - be it a simple jitter or a more complex brush dynamics. (It will get even better when I finally understand how brush dynamics work and what it may or may not do. )

The pattern from the post you quoted is rendered in Blender - an open-source 3-D program. Might be a little overkill, but Blender allows you to create all kinds of procedural textures for your objects - and rendering these means I can get finer details than with any pixel program.

But again, I found it too complex. There is so much you can tweak and you have to switch between programs all the time to test your new versions.
The new, GIMP-only method, again presented in the tutorial post, gives almost as good results and is so much easier to do. And there are still ways you can improve on it in GIMP.