The quick access toolbar on the left is very useful.
Just felt there's an Accessibility issue with Draw/shape pannel:
When the eraser is selected, it has a very light shade of grey compared to when other items are selected on other panels. This might confuse a person with color difficulty as they cant understand why they cant draw a shape. There could be two solutions:
Darken the eraser tool color when selected
Alternatively, there could be a pen tool alongside the eraser tool (where only one could be selected at a time) against the current one which only asks to select/deselect eraser tool.
Then pen option at times doesn't release with mouse click (others can verify this one)