Setting a colour in the diagram style (Fonts and Colours) had no effect on the diagram: whatever colour was picked, the diagram was drawn in a near-white shade. Picking a colour for the constraints, for example, made the constraint lines white instead of the chosen colour.

The colour is now taken from the picker as chosen, and the picker also opens showing the colour that is currently in effect for the selected entry.

On top of that, the list of texts and colours now shows every entry the way it is drawn in the diagram: each text kind in its own font family, style and colour, and each colour entry with a sample of its colour, all on the diagram background. Every line is shown at the same size, so the list stays readable no matter how large or small a font is configured.