Updated to Joplin 2.5.x from 2.3.x - now there is a lot of whitespace on both sides of text

Just updated to Joplin 2.5.x from 2.3.x and immediately noticed a large increase in whitespace on both sides of the text 'column' in both markdown editor and viewer. I'm also using the Rich Markdown plugin, so I'm not sure if that is related.

Joplin 2.5.12 (prod, win32)

Thanks!