[konsole] [Bug 494301] New: Scrolling colored text while using the Monocraft font version 1.4 sometimes leaves 1 pixel thick artifacts on the left side of the window

[palapapa]

https://bugs.kde.org/show_bug.cgi?id=494301

            Bug ID: 494301
           Summary: Scrolling colored text while using the Monocraft font
                    version 1.4 sometimes leaves 1 pixel thick artifacts
                    on the left side of the window
    Classification: Applications
           Product: konsole
           Version: 24.05.2
          Platform: Gentoo Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: font
          Assignee: konsole-devel at kde.org
          Reporter: palapapa93 at gmail.com
  Target Milestone: ---

Created attachment 174539
  --> https://bugs.kde.org/attachment.cgi?id=174539&action=edit
Screenshot of the artifact

SUMMARY

Scrolling the terminal while colored texts are on the screen while using the
Monocraft font version 1.4
(https://github.com/IdreesInc/Monocraft/releases/tag/v1.4) sometimes leaves
1-pixel-thick artifacts on the left side of the window. I don't know if this is
the only font that does this, but I have tried using other fonts, and this
doesn't happen.

STEPS TO REPRODUCE
1.  Change the font to Monocraft. I have only confirmed that version 1.4 causes
the artifact.
2.  Use a command that produces colored characters and scroll the terminal. I
think having more colored characters on screen makes this happen more. Note
that this is really inconsistent and the artifact only appears sometimes.
3. See colored 1-pixel thick lines appear on the left side of the screen. (I
don't know if the artifact lines are only ever blue, but so far they've only
been blue)

OBSERVED RESULT

See attachment.

EXPECTED RESULT

No artifact.

SOFTWARE/OS VERSIONS
Operating System: Gentoo Linux 2.15
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.6.51-gentoo-dist (64-bit)
Graphics Platform: X11
Processors: 8 × 11th Gen Intel® Core™ i7-11370H @ 3.30GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics

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