Bug 484549

Summary: Low Contrast in "Color Grid" Display Type on Bright Tiles in System Monitor GUI
Product: [Applications] plasma-systemmonitor Reporter: paweantoniuk
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: RESOLVED WORKSFORME    
Severity: normal CC: ahiemstra, kdedev, plasma-bugs-null
Priority: NOR    
Version First Reported In: 6.0.2   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: A screenshot demonstrating text that is nearly invisible on the Color Grid sensor display

Description paweantoniuk 2024-03-26 20:14:49 UTC
Created attachment 167813 [details]
A screenshot demonstrating text that is nearly invisible on the Color Grid sensor display

SUMMARY
Following recent software updates, the font color used in the "Color Grid" display style within the System Monitor GUI application exhibits extremely low contrast on bright-colored tiles. This issue significantly reduces readability, rendering the display style less effective for monitoring purposes.

STEPS TO REPRODUCE
1. Launch the System Monitor GUI application.
2. Navigate to the left side panel and select the "Add New Page" option to create a new page.
3. On the newly added page, access the right configuration pane. Change the Display Style of the default "System Monitor Sensor" to "Color Grid".
4. Within the same configuration pane, under the "Sensors" section, navigate to CPUs -> [Group] CPU -> [Group] Total Usage (%) to select this specific sensor.
5. Observe the displayed results in the center pane, focusing on the contrast between the text and tile backgrounds.

OBSERVED RESULT
The font color on the tiles representing CPU usage appears excessively bright, especially on tiles with lighter backgrounds. This results in a significant reduction in contrast, making the text difficult to read (please see the attached file "wrong-contrast.png" for a visual representation of the issue).

EXPECTED RESULT
The application should maintain a high contrast ratio between text and tile backgrounds regardless of the tile's color, ensuring that text remains legible under all circumstances.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 6.0.2
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION
Graphics Platform: Wayland
Graphics Processor: NVIDIA Geforce RTX 4090
Comment 1 TraceyC 2025-05-09 19:19:37 UTC
I see different, but similarly problematic low contrast on git-master with the "Scratchy" color theme (from the store)
The text is light grey, and the backgrounds are different low-saturation colors, but the text is readable. This is dictated by the color theme.

With the Breeze Light color scheme, the text is black on very low contrast colored squares. Again, it is readable.

A lot has changed and improved since this was reported. If you still see this bug, can you try something? Try re-tested with a brand new user, with one of the default themes and color schemes. Thanks!
Comment 2 Bug Janitor Service 2025-05-24 03:47:32 UTC
๐Ÿ›๐Ÿงน โš ๏ธ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME.

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Comment 3 Bug Janitor Service 2025-06-08 03:47:45 UTC
๐Ÿ›๐Ÿงน This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.