Arrows and objects outlines thickness should be by default proportional to the resolution of the image.

[Hans Deragon]

In the editor, the default thickness is always the same, regardless if the image is 800x600 or 3800x2160. The user must manually adjust the thickness each time.

It would be great if when opening an image in the editor, the default thickness is adjusted automatically as a percentage of the image size. This way, when drawing an arrow on a high resolution image, the thickness of the arrow would looks normal, not thin. Same goes with all objects default thickness/sizes.

Of course, once in the editor, the user can change the thickness to his/her liking if the default is not desired, as it is the case now.