Problem with magnifier glass is that while you have only one cursor and can show the magnifier glass of it's position, while resizing with arrow keys you can resize all sides and move the rect, so from what to show the magnifying glass?

Similarly, and I should probably open a new issue/request for this, rect size should also still be displayed after you release mouse click, because you still can resize rect using Alt + arrow keys and it would be useful to know the resulting size.

Yes, please open another feature request for this one.

Problem with magnifier glass is that while you have only one cursor and can show the magnifier glass of it's position, while resizing with arrow keys you can resize all sides and move the rect, so from what to show the magnifying glass?

In my opinion it should still follow mouse cursor. If you find it confusing, maybe it could be default OFF and toggleable with a hotkey like M.

Yeah, but with arrow keys you can modify something else then what is under the mouse cursor. And the magnifying glass is not really a zoomed in version of what you see on the screen, it's an upscaled region of the background image centered at the mouse cursor so you wouldn't see selected rect on it.

And the magnifying glass is not really a zoomed in version of what you see on the screen, it's an upscaled region of the background image centered at the mouse cursor so you wouldn't see selected rect on it.

Right, that way magnifier glass really doesn't solve the issue. So I stick with the original proposal: be able to move cursor with arrow keys while magnifier is visible, before pressing mouse button to start making the rect. That's how I'm used to on Windows with ShareX, but now I'm trying Linux.

@pintassilgo does this new feature, implemented by @SebiAi resolve your issue?

Yes, it does. Thanks!