I did as you instructed. I can barely see the lines of the wireframe. Its like the polygon shading is to dark. Is there a way to adjust the tone / brightness the polygon is being displayed in the viewport when using hidden line?
The cube indicates clearly that it isn’t a high poly/segm. count ;o) Thanks for sharing your findings. But this is not an effect that appears only in “Hidden Lines”.
In order to have a Linear Color-Space working the Edit>Project Settings>Input Profile should be set to “linear” as well. Otherwise the, e.g., sRGB space will cause such an “conflict”.