Based on the Ubuntu 18.04 LTS (Bionic Beaver) operating system series, Freespire 4.0 promises to offer users a stunning graphical interface that’s familiar to those coming from another Linux OS or even from a Windows OS. It also features an intuitive dark mode for professionals and those who like dark themes. Freespire 4.0 comes with a great collection of Open Source software projects, among which we can mention the Chromium 68 web browser, Geary 0.12 email client, AbiWord word processor, Gnumeric spreadsheet viewer and editor, Audacious audio player, Totem video player, Synaptic and G-Debi graphical package managers.