There are multiple ways in which you can change the appearance.
- Select from numerous fonts, including all the fonts available in your device.
- Edit the font size, line width, and image size.
- Choose light and a dark themes, and select Auto to have it change automatically based on your device settings.
On Mac, find the appearance settings by clicking on the Appearance icon, on the right side of the toolbar.
On iOS, find the appearance settings by tapping on More in the tab switcher.
Then, under Personalize, select Editor & Themes.