https://bugs.kde.org/show_bug.cgi?id=447624

Nate Graham <[email protected]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |UPSTREAM
                 CC|                            |[email protected]
             Status|REPORTED                    |RESOLVED

--- Comment #1 from Nate Graham <[email protected]> ---
Unfortunately this is just how fractional scaling works. If you take a
single-pixel line and try to scale it up 150%, you end up with a 1.5 pixel
line. But oops! There's no such thing as half a pixel. So the rendering engine
needs to figure out how to render a 1.5px thick line on a grid of  1.0 pixels.
The result depends on how the rendering engine decides to handle this, but
there isn't really a good solution, just a series of trade-offs. Maybe Qt could
do it better. But that would be up to Qt to fix; there isn't really anything we
can do about it here in KDE land.

For more information, see
https://community.kde.org/Get_Involved/Design/Lessons_Learned#Pixel-alignment_for_SVG_icons,
which is about a similar topic.

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