Vector<ScriptRun> mScriptRuns;
Vector<FontRun> mFontRuns;
Vector<ColorRun> mColorRuns;
+ Vector<ColorRun> mBackgroundColorRuns;
Vector<FontDescriptionRun> mFontDescriptionRuns;
Vector<LineBreakInfo> mLineBreakInfo;
Vector<ParagraphRun> mParagraphInfo;