See which drawing tool is activated

[Aurelie-Jallut]

Is your feature request related to a problem? Please describe. I can't see which tool is selected. (i'm blind ;) For example, if I do something like import data and then want to select one of the imported markers, I find that it starts drawing and I can't easily figure out how to get back to point selection mode.

Describe the solution you'd like

• Visually identify which drawing tool is selected
• A selection button would be helpful

Additional context The style of the drawing buttons should be differentiated from the others (as we can have an open panel + a selected drawing tool).