/// and the inset's own background color.
/// \param sel whether to take the selection state into account
ColorCode backgroundColor(Inset const * inset, bool sel = true) const;
/// Determines the text color based on the intended color, the
/// and the inset's own background color.
/// \param sel whether to take the selection state into account
ColorCode backgroundColor(Inset const * inset, bool sel = true) const;
/// Determines the text color based on the intended color, the