After I changed my old theme to the GP theme, the font of my my classic editor has changed to Times New Roman.
Is there a way to change that?
So, the purpose is not for the front end site, but for myself only.
GP actually doesn’t control the classic editor at all as it’s controlled by WordPress itself – you should see the same thing when using a twenty series WordPress theme.
I did a quick Google search and don’t believe that’s possible.