Hi!
A feature I would love to have is the ability to view line drawings of patterns when browsing patterns in stash. This would be helpful for scanning for a particular style, for seeing similarities in patterns, and for imagining options without being influenced by fabrication or styling of sample photos.
For some neurodiverse people the simpler view, with consistent format and less colours could be very beneficial.
If you make your preferred Line Drawing the 1st image in the “Photos” for a given pattern then it’ll be the default image that you see when you browse the Patterns 
This is on the backlog: Stash Hub Roadmap · GitHub
I do exactly as @ClaireSews suggests with mine and use the line drawing as the first image (and also add to line drawing section too).
The trouble being not all pattern companies create equally useful line drawings (Ellie & Mac are the worst Ive personally seen as they’re shaded sketches instead of true line drawings).
I’m excited that this is a feature in development! I find that when I’m looking for a pattern myself, I like the line drawings, but my kids have a hard time visualizing them, so they prefer the fashion photos. It would be amazing to be able to toggle between the two.