a brush i use for lineart
when writing, i deactivate pressure variation. edit as you seem fit ^_^

you can use it differently! rather than changing the opacity and brush density, i sometimes manually expand the lines my drawing over them multiple times
both examples are from the same piece, made in a 1386x1843 canvas with the brush size being 10px
it has color mixing activated, so you may use it as coloring if you want, though i never tested it and only activated because i like how it looks on lineart