setFontNamesByFormattingTag(val) {
    this._fontNamesByFormattingTag = val;
    this._setUpdateTextureDirty();
  }
Map of colors to use by formatting tag
@example
var colorsByFormattingTag = {};
colorsByFormattingTag[CONFIG.FORMATTING_ENGINE.emphasisStart] = {r: 255, g: 0, b: 0};