EDIT: Problem solved!
Hello! I am very new to Animate (just got it today), and am quite confused about the custom brush feature. I go to select the brush library, after which it says to double-click on a custom pattern. After doing so I can't find a way to change the brush to the new pattern. Any thoughts? Help is greatly appreciated!
Thanks for reporting back. You could add what it was that solved things for you, in case someone else comes by here with the same problem.
Select the Paint Brush tool.
Click the 3 dots to the right of the Style drop-down menu in PP.
Select Brush Library to find your new brush.
Thanks for the reply! Simply wasn't using the right brush tool lol.