Android devices
Can reduce power usage by a significant amount (depending on the device’s screen technology).
https://developer.android.com/guide/topics/ui/look-and-feel/darktheme
Linux Mint
Linux Mint Menu (lower left) > System Settings (on left column) > Appearance > Themes > Appearance, choose Dark.
Windows 11
Start Menu (lower left) > Settings > Personalization > Colors > Choose your mode: Dark.
Windows 10
Start Menu (lower left) > Settings > Personalization > Colors > Choose your color: Dark.
Startpage.com
In a browser, at https://www.startpage.com, get to Settings. Either click https://www.startpage.com/do/settings, or click the Hamburger Menu button in the upper-right ☰ > Settings. Then scroll to the Appearance section, find Theme, choose Dark.
You can first test how it will look with this link:
- Dark Theme: https://www.startpage.com?t=dark
- Night Theme: https://www.startpage.com?t=night
This is either saved as a cookie or in a settings link. I choose the cookie.
Firefox
In Firefox, get to General Settings. Either click on the Hamburger Menu in the upper-right ☰ > Settings or go to about:preferences#general (link unavailable). Then scroll down to Language and Appearance > find Website appearance > choose Dark.
If you really want instead, you can build your own Firefox Theme at https://color.firefox.com/.
