For sketching, lining and refining.
A brush with no color mixing to refine paintings! It can also be used for lineart and sketching.

Below is a step by step on how I use it.
- I drew a sketch on a 2000x2000 px canvas 300 dpi with the brush set to 10 px and the opacity to 50%
- You can lay down the base colors with the diamond render itself, or use your favourite painting brush, Here I used the Gpen and adjusted the density and opacity of it.
- I refined the details and added extra touches with the diamond render brush!