Customize font size.

[dessalines]

Describe your suggested feature

In addition to customizing the key size, thumb-key should be able to customize the font sizes.

Other details

#833

Acknowledgements

• I have written a short but informative title.
• I have updated the app to the latest version.
• I have checked through the app settings for my feature.
• I have searched the existing issues and this is a new one, NOT a duplicate or related to another open issue.
• This is a single feature request, in case of multiple feature requests I will open a separate issue for each one (they can always link to each other if related)
• This is not a question or a discussion, in which case I should have gone to lemmy.ml/c/thumbkey
• I have admitted that I am a clown by having checked this box, as I have not read these acknowledgements. 🤡
• I will fill out all of the requested information in this form.