https://bugs.kde.org/show_bug.cgi?id=386019

            Bug ID: 386019
           Summary: Brushes displayed in brush editor may have a lower
                    quality than strokes actually painted on the canvas
           Product: krita
           Version: git master
          Platform: MS Windows
                OS: MS Windows
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: usability
          Assignee: krita-bugs-n...@kde.org
          Reporter: nevinevi...@yahoo.com
  Target Milestone: ---

Created attachment 108485
  --> https://bugs.kde.org/attachment.cgi?id=108485&action=edit
Screenshot showing the difference in line quality in Krita 3.3.1

This has been tested both with 3.3.1 and git master on Windows 10 64bit 1709.

In the brush "Scratchpad" in the Brush settings editor in Krita 3.3.1 (as well
as git master) I noticed that line quality is often lower than on the actual
canvas. I suspect that brush strokes in the brush editor always have 8 bit per
channel color precision, while the canvas they can have a higher bit depth. Bit
depths of 16 bit per channel can noticeably increase hard line
quality/antialiasing compared to 8 bit per channel mode, but this isn't taken
advantage of by the brush editor.

This isn't just cosmetic. There are implications on usability in that creating
new brushes might take longer than assumed due to this difference (and
subsequent required testing on the canvas).

I have attached a screenshot showing this issue with strokes painted with the
same brush. The canvas has a 16 bit integer/channel depth.

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