The UI for Affinity is TOO Dark. I can't use this app just because it slows me down looking for content controls because I have to have my art board white and the contrast between Dark UI and white art board makes it even harder to read which slows entire process.
Give the user the ability to set the UI elements to a liter value instead of Dark black or slightly less Dark grey. Right now it's too stark if the art background is white.
To say it would take longer due to icon sets is just lazy. All those icons should be created to port out in a few minutes if done properly and should be designed to work on any background.
This is a basic user preference feature that needs to be part of the app otherwise I can't use it.