SUMMARY Tested with 4.3.0, 4.5.0 and the July 19 5.0.0-prealpha (git c81ba5b) appimages. This was first reported by a user here: https://krita-artists.org/t/help-shortcut-k-seems-to-be-going-outside-color-selection/26411 For high lightness with low saturation colours, the K/L keys give 'reasonable' steps for colours that are close to red on the colour wheel. For colours that are far from red, e.g. green, cyan, the initial K step is very large. There is also a notable Hue shift in these cases. This is seen with the Advanced Colour Selector and the Specific Colour Selector for all HSx models. I used the default 8-bit RGBA image profile. NOTE: Because of https://bugs.kde.org/show_bug.cgi?id=422045 , the cursor must be positioned outside of the Advanced Color Selector when pressing the K/L keys in order to see this as it happens. STEPS TO REPRODUCE 1. Using the Advanced Colour Selector, select a 'pure red' Hue and then a position on the bottom edge of the triangle close to the lower left corner. i.e a pale pink colour. Note: The square selector shape can be instead and any HSx model can be used. 2. Press the K key to Darken the colour. 3. Press the L key to Lighten the colour back to where it started 4. Choose a hue that is green/cyan and press the K key to Darken it. 5. Press the L key to Lighten it back to where it started. 6. Optionally choose other colours around the Hue wheel, with high Lightness and low Saturation and do the same thing with them. OBSERVED RESULT 2. The darkening is quite small and 'reasonable' and additional K actions give small changes. 4. The darken step is very large and there is a significant change in the Hue position. 6. The further away from red that an initial Hue setting is, the larger the step and the more the Hue shift is. EXPECTED RESULT The K/L steps should be similar for all hues and be 'reasonable'. SOFTWARE/OS VERSIONS Krita Version: 5.0.0-prealpha (git c81ba5b) Languages: en_GB, en, en, en_GB, en Hidpi: false Qt Version (compiled): 5.12.11 Version (loaded): 5.12.11 OS Information Build ABI: x86_64-little_endian-lp64 Build CPU: x86_64 CPU: x86_64 Kernel Type: linux Kernel Version: 4.19.0-17-amd64 Pretty Productname: Debian GNU/Linux 10 (buster) Product Type: debian Product Version: 10 Desktop: MATE
Confirmed with b00b0063