in src/visual.ts [1362:1373]
private applyTextStyle(element: Selection, options: IDualKpiOptions, isTitle?: boolean) {
const fontSizeAutoFormatting: boolean = isTitle ? options.fontSizeAutoFormattingTitle : options.fontSizeAutoFormattingValue,
fontSize: number = isTitle ? options.titleFontSize : options.valueFontSize,
isBold: boolean = isTitle ? options.isBoldTitle : options.isBoldValue,
isItalic: boolean = isTitle ? options.isItalicTitle : options.isItalicValue,
fontFamily: string = isTitle ? options.fontFamilyTitle : options.fontFamilyValue;
this.applyFontSize(element, fontSizeAutoFormatting, fontSize);
this.applyBold(element, isBold);
this.applyItalic(element, isItalic);
this.applyFontFamily(element, fontFamily);
}