First off. Love the app!
As a graphic designer coming into pixel art honestly 
I’d love to see these features added when possible.
UI
- right or middle mouse click and drag layers in outliner (changing layer order)
- modifier key + right click to bring up inking panel where the mouse is on the artwork (need to change these a lot)
- maybe also brush opacity on the previously mentioned panel
- add Hue Saturation Lightness bars beneath default color wheel in UI (there isn’t enough UI to pick an color accurately from scratch)
Brushes (hyper quick functions like photoshop)
- alt + right mouse drag left and right to change brush size
- alt + right mouse drag up and down to change brush opacity
- add feathered opacity in brush settings
Other
- add masking
- add layer clip masking
- add a way to import an existing file (ex. png) to a new layer
Thanks