Automatic Light/Dark Mode Switch

Both of the following must be set:

• Settings > General > Language and Appearance > Website Appearance > Automatic
• Right-click top of sidebar > Edit theme > click star-looking icon for automatic

Keyboard Shortcuts

• Copy URL (change to avoid conflict with GitHub)
  • Settings > Keyboard Shortcuts > Other Zen Features > Copy current URL: change to Ctrl-Alt-C

Linux

• Show normal window controls:
  • Settings > Look and Feel > Browser Layout > Sidebar and Top Toolbar