Vector<GlyphRun> mUnderlineRuns; ///< Runs of glyphs that are underlined.
Vector<Vector4> mColors; ///< Colors of the glyphs.
Vector<ColorIndex> mColorIndices; ///< Indices to the vector of colors for each glyphs.
+ Vector<Vector4> mBackgroundColors; ///< Background colors of the glyphs.
+ Vector<ColorIndex> mBackgroundColorIndices; ///< Indices to the vector of background colors for each glyphs.
Vector4 mTextColor; ///< The text color
Vector4 mShadowColor; ///< Color of drop shadow