Bug 506108 - Levels filter layer displays no histogram until added to the layer stack
Summary: Levels filter layer displays no histogram until added to the layer stack
Status: RESOLVED FIXED
Alias: None
Product: krita
Classification: Applications
Component: Filter Layers (other bugs)
Version First Reported In: 5.2.9
Platform: Appimage Linux
: NOR minor
Target Milestone: ---
Assignee: Krita Bugs
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-06-24 13:35 UTC by Noel Santos
Modified: 2025-11-14 23:31 UTC (History)
1 user (show)

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Description Noel Santos 2025-06-24 13:35:10 UTC 
SUMMARY

When adding a levels filter layer, no histogram is shown in the dialog during creation. After it has been added, clicking on properties to re-show the dialog displays the histogram.

STEPS TO REPRODUCE
1. Open a photo in Krita.
2. Add a filter layer and select Adjust -> Levels.

OBSERVED RESULT

No histogram.

EXPECTED RESULT

Histogram.

SOFTWARE/OS VERSIONS

I'm on Linux Mint.

ADDITIONAL INFORMATION

Filter masks aren't affected by this bug.

An August 2024 thread exists reporting this issue. https://krita-artists.org/t/histogram-not-showing-during-filter-creation/99235/
Comment 1 Emmet O'Neill 2025-11-14 23:31:56 UTC 
Bug fixed by Stuffins, reviewed by me.
Commit d4d156d03344a7267e98d30a6e8749c97dea3ac9 @ git master.

No bug number in the commit message, so I'm closing this the old fashioned way.
(Writing this while waiting for the CI pipeline to auto-merge the MR, then we need to cherry-pick.)