You initially thought the app would have a light and dark theme and nothing more. Then you went off on a tangent with the whole "materials" thing.
After using the output of that (the "canvas" theme) for some time, I fell like your limitations as a designer have shown through, and the materials are simply a distraction. It would probably be better for you to replace the "canvas" theme with a light theme as you originally intended. It will probably look better, and be cleaner overall.
You initially thought the app would have a light and dark theme and nothing more. Then you went off on a tangent with the whole "materials" thing.
After using the output of that (the "canvas" theme) for some time, I fell like your limitations as a designer have shown through, and the materials are simply a distraction. It would probably be better for you to replace the "canvas" theme with a light theme as you originally intended. It will probably look better, and be cleaner overall.
The canvas stuff is basically a distraction.