theme

type Palette struct {
	Primary    color.Color
	Secondary  color.Color
	Foreground color.Color
	Muted      color.Color
	Background color.Color
	Surface    color.Color
	// SurfaceLow is a subtle lift above Background (below Surface), used
	// for low-emphasis fills like selected-row highlights.
	SurfaceLow color.Color
	Success    color.Color
	Warning    color.Color
	Error      color.Color
}