Poor resolution issue

[yaduch74]

Hello,
Trying to print/export or whatever my plan, the result is pixelated (~1cm per pixel).

I've got a well defined plan on my screen, but if I print it, export it to svg, or to png using the plugin (whatever resolution I put) all plan elements are aligned on a pixelized grid of approximately 1cm, each line has a minimum width of this pixel size.
Once imported in inkscape, I can move with accuracy those big pixels, but the accuracy has already been lost.

Tried the icon resolution: I actually got some well defined bath&co inside pixelated walls

I'm tearing my hear out on this problem sine a few hours without any solution to render an accurate plan.

[Puybaret]

Use a full black color pattern for walls if this this is really a problem.

[MarioSambol]

I have no problems exporting to SVG, opening with Adobe Illustrator and printing, everything is fine. The Print Screen plan works just as well, especially if the monitor is 4K resolution.