Font size/style grid migrate for Export to pdf excel (Java)

Hi !
Is it possible to migrate grid’s font size/style to pdf/excel on Java Version Plugin ?

It’s possible to specify fontsize for online export tool.
If I don’t miss anything there is no special property in the last published Java version which will specify font-size.
If to talk about online export service it may contain fontsize parameter which will be applied during export. For example:

But it doesn’t enable to specify font-style.