The current color chooser dialog, at least as presented by kate, it's seemingly 100% implemented with QColorDialog, which has no concept of color palette. At the same time, both KDE the environment and Kate the editor have the concept of color scheme. This means that when we want to select a color, we can't choose from said scheme and we have to either pick from the screen, hoping the color we're looking for is shown, or go to the sources and pick it up from there. I would be nice if the KDE Framework would offer a color picker dialog/widget that would support palettes, and would by default use the system's color scheme and optionally allow the caller to provide it's own schema.