Ubuntu Budgie and Orchis theme deliver a smooth, elegant desktop experience | Ubuntu Budgie
Using the Night Light Feature in Ubuntu and Other Linux
Ubuntu 10.04 Light (Radiance) And Dark (Ambiance) Themes Are Now Available For All (Download) ~ Web Upd8: Ubuntu / Linux blog
New Ubuntu Light Theme(s), Boot Splash, Logo Revealed (And More!) [Screenshots] ~ Web Upd8: Ubuntu / Linux blog
XFWM/XFCE] Building Lime OS. A Light, Super Fast and Elegant Operating system based on Ubuntu and XFCE Desktop. Night and Day Mode with the click of a single button. COMING SOON. :
Night Light Settings in Ubuntu - TestingDocs.com
How to Enable Night Light on Ubuntu 17.10 - OMG! Ubuntu
Ubuntu 19.10 Will Feature a Bright New Look (Updated) - OMG! Ubuntu
compatibility - Is there any lite Ubuntu version for an old PC? - Ask Ubuntu