I’ve noticed for the past two nightlies, including today’s Krita (5.2.0-prealpha-4f61ff2900), that when I choose a color in either the Specific Color Selector or the Small Color Selector, the color in the other selector is the exact opposite as the color chosen. This is also reflected in the Foreground color and the Fill Gradients editor where the Foreground color will be the color from the Specific Color Selector, and the Fill Gradients editor with be the color from the Small Color Selector.