Hello,
addChart allows applying the following styles to the title:
* 'stylesTitle' (array)
* 'bold' (boolean)
* 'color' (ffffff, ff0000...)
* 'font' (Arial, Times New Roman...)
* 'fontSize' (8, 9, 10, ...) size as drawing content (10 to 400000). 1420 as default
* 'italic' (boolean)
superscript and subscript styles are not supported yet. The same styles are applied to the whole title. We have moved the request to the dev team to add suport.
Regards.