Color Fonts

The Color section in the grid view holds the CPAL palette. Add and remove colours there. The palette is stored in the standard ufo2ft lib key, so any tool in that chain reads it.

A colour glyph is a stack of layers, each painted with one entry from the palette. Add a layer, assign it a colour, and the stacked preview shows the result.

The stacked-preview toggle switches between seeing the layers combined and seeing the glyph as it draws without colour.

By default Runebender writes the COLRv0 shape: layers and a palette, with ufo2ft exploding them into real glyphs at compile time.

The To v1 button converts the font: every colour glyph’s layers become real suffixed glyphs with explicit colorLayers structures and solid paints. That is the COLRv1 baseline. From that point ufo2ft’s own exploding is off, because the structures are already there.

In the v1 shape, a layer can carry a linear gradient instead of a solid paint. It runs from the layer’s own colour at the baseline to a selected swatch at the ascender. Converting to v1 happens automatically if you ask for a gradient before converting.