[Koko] [Bug 464164] New: Option to change background colour for transparent images

[Jack Hill]

https://bugs.kde.org/show_bug.cgi?id=464164

            Bug ID: 464164
           Summary: Option to change background colour for transparent
                    images
    Classification: Applications
           Product: Koko
           Version: unspecified
          Platform: Compiled Sources
                OS: Linux
            Status: REPORTED
          Severity: wishlist
          Priority: NOR
         Component: General
          Assignee: unassigned-bugs at kde.org
          Reporter: jackhill3103 at gmail.com
                CC: nate at kde.org
  Target Milestone: ---

Created attachment 155216
  --> https://bugs.kde.org/attachment.cgi?id=155216&action=edit
Image with text in the upper-right corner on top of a transparent background

SUMMARY
I have an image with black text on an area with a transparent background. Koko
seems to set the background colour to black, making the text unreadable. (Yes
it was my fault for forgetting to add a background when making the image, but
still... I think it would be useful.)

It would be nice if there was a way to
1) set the background colour globally
2) change the background colour temporarily on a per-image basis.

STEPS TO REPRODUCE
1. Download the example image
2. Open it in Koko

OBSERVED RESULT
The text in the upper-right corner of the image is not readable.

EXPECTED RESULT
I should be able to set the background colour to white so I can read the text.

SOFTWARE/OS VERSIONS
Operating System: openSUSE Tumbleweed 20230109
KDE Plasma Version: 5.26.5
KDE Frameworks Version: 5.101.0
Qt Version: 5.15.7
Kernel Version: 6.1.3-1-default (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION

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