Allow users to change labels font and size

[daisy-pacheco]

Hello all,

While trying to make some adjustments to the generic plots using r2dii.plot, I realised it is not possible for users to change the font and size of the labels. Although it is possible to change the characteristics of the axis titles and texts using a theme(), I was not able to change it for the labels (please see image for reference).

Is there any chance to make this happen?

Thanks a lot for your time on checking this!

Best,
Daisy

@MonikaFu this is for your reference :)

[jdhoffa]

@MonikaFu can we remove the next-release tag here?

Since we are so delayed in getting this released, I would prefer to only include the "must haves" (e.g. Bug fixes and anything already promised to the users, e.g. in the deprecation messages)