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I can see myself using this for simple communication on 3D geometry work to my colleagues (I work a lot with 3D rendering). Hand drawing is so hard sometimes :). However, for that it would need at least a transparency option so I can layer boxes and all.

Otherwise, it feels really smooth in my browser. Good job there. I can see more shortcuts in the future but as I have very basic needs these are not a showstopper for me.

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A lot of people have been asking for transparency lately. We can add it, but would need to rework how object selection/deselection looks visually. Thank you for the feedback.

What you probably want to do is draw an outline around your object when selected.

We played around with it a while back, but didn't quite get it right (visually), will give it another shot.

It's a bit tricky to get right, try a Sobel filter.

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