The DynamicPaintbrush Module

Ever wanted to use a paintbrush in PixInsight to help you adjust your masks? If yes, you’re in the right place!

DynamicPaintbrush is a PixInsight dynamic process that allows us to define a custom brush and use it to paint over any view (opened image) in PixInsight.
The brush is not limited to painting a flat color. Through a compact toolbar we choose a mode — a normal color paint-over, hue/saturation-only recoloring, selective saturation, lighten or darken, neutralizing a color cast — or a pixel action such as Blur (a true Gaussian softening) and Smudge (a finger-paint smear that drags color along the stroke). A Protect highlights toggle keeps bright stars and highlights largely untouched while we work on the darker background.

The complete official documentation for DynamicPaintbrush can be accessed a few paragraphs below.
TRY IT!
DynamicPaintbrush is not free, but you can try a 100% functional copy for 30 days. If you want to use it after that, it's a one-time payment of just 6.99 US$. Your purchase also gives you a lifetime of free upgrades. No subscription fees, no fees for newer versions as they come out. $6.99 gives you the latest version of DynamicPaintbrush at any time, for life.
DynamicPaintbrush is only distributed via a PixInsight repository, as this is the easiest and safest way to install new PixInsight modules.
All we need to do to install our trial copy is add the DynamicPaintbrush repository to our PixInsight installation:
https://repo.deepskycolors.com/DynamicPaintbrush/
If you need instructions for adding the repository URL to PixInsight, click here
With the repository URL in place, we now do RESOURCES > Updates > Check for Updates. The DynamicPaintbrush process will appear as a candidate for installation, automatically selected. We click Apply.
After that, PixInsight will inform us that the install will happen once we restart PixInsight. We do that, and DynamicPaintbrush will be under PROCESS > DeepSkyColors and PROCESS > Painting.
Register your copy!
When you register your copy of DynamicPaintbrush, you can install and use it on any machine you have also installed PixInsight, regardless of operating system (your registration is valid for any and all platforms) or number of installations. Please, select your payment method below:
NOTE: After you make your purchase, you should receive an email from us, usually within 15 minutes. If, after 15 minutes (but not before that) you still haven’t received our message, please check your spam folder. If still nothing, contact us.
DynamicPaintbrush Documentation
DynamicPaintbrush’s full documentation is accessible from within DynamicPaintbrush itself – we just need to click on the Documentation button in DynamicPaintbrush . We have also made the same documentation available online, here:
DynamicPaintbrush Official Documentation.
Credits
DynamicPaintbrush was developed using the PixInsight Class Library. Any product derived from the PCL, including DynamicPaintbrush, must reproduce the following acknowledgment:
This product is based on software from the PixInsight project, developed by Pleiades Astrophoto and its contributors (http://pixinsight.com/).
The above statement refers to our use of the PCL to develop DynamicPaintbrush only. DynamicPaintbrush is developed independently, without any relation to or specific contributions from Pleiades Astrophoto.