Chromasupply - Mixer: Multicolor Brushes (Photoshop)

https://chromasupply.com/products/mixer-multicolor-brushes-for-photoshop

36 brushes (.abr) | 77 color swatches (.png) | Builder smart PSD (for quickly applying additional effects)

Building on Photoshop's built in mixer brush engine, we've designed these brushes to be FULL COLOR. We spent months researching, beta testing and fine tuning. All the brush head shapes were built from scratch and all the paint swatches are taken from physical pieces created in our own paint studio.
With 36 brush head shapes and 77 paint swatches, you have over 2700 different brush/color combinations.
While there are many great uses for Mixer, we think you'll really love using them for creating custom lettering. The brushes will give you an instant fluid, dimensional look to your work.
Using the included Builder PSD template, you can easily customize the feel of your paint strokes to get a multitude of different looks by using pre-built adjustments. Since all Builder adjustments are live filters/effects, you can fine tune them even more for your specific project or create your own custom adjustments.