- You should be able to drag/drop elements from the sidebar onto the canvas
- Wiring shouldn't be a separate tool, and you should be able to drag/drop wires instead of having to click on the two endpoints separately
- You should be able to delete the currently selected gate with the delete key, and the "delete" button in the toolbar should delete the currently selected gate instead of it being a separate tool
- There's not enough contrast between the grid pattern and the background of the canvas
- There seems to be some problems with moving overlapping components
- There's no way to move around the canvas
- The progress doesn't seem to save and there's no way to skip levels