Hi Srishti, Thank you for your reply. Could you clarify what exactly you weren’t able to reproduce? Was it regarding the curve colors in CMYK mode on the Light UI, or something else? I have already tried the following steps: • Uninstalled Photoshop 2025 via CC Desktop with “Remove Preferences” enabled, then reinstalled with “Keep Preferences” disabled. • Turned off GPU Performance and restarted Photoshop. The behavior did not change. The curve colors remain the same. For reference, here is my environment: • macOS Sequoia 15.7 / M1 Ultra • Photoshop 26.11 Until version 2024, the curve colors in both RGB and CMYK modes were adjusted for visibility. For example, Yellow and Green curves had slightly reduced brightness, which made them distinguishable. In 26.11, however, both RGB and CMY curves are now rendered at maximum brightness (e.g. G255, R255+G255 for Yellow), with no consideration for visibility. Additionally, in Light UI, the Black channel curve becomes completely invisible because it is drawn in white and does not adapt to the background. On top of this, each channel now has unnecessary color gradients drawn in the background, which only makes the Tone Curve panel harder to use. This is clearly an issue with the UI color settings. It is hard to understand why this was released in this state—surely someone must have noticed during development. Please do not rely on end-users as beta testers. Disabling the histogram or GPU Performance is not a solution, as those options reduce usability and place unnecessary burdens on actual work. Please fix this issue properly. Regards,
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