Iris OS Onyx

Description
Iris OS Onyx is a operating system made by iriSoft in 2019. It includes a tremendous amount of new features, such as a new interface - Aurora Shell which iriSoft claims it's a mix of Google's Material Design and iriSoft's design languages. Onyx got mostly positive reviews, with some saying about the new and exciting Aurora Shell including widgets.

Apps
Iris OS Onyx adds in new apps and features. A secondary browser made by iriSoft, SafeBrowser, was added into the OS, but does not replace Firefox entirely. A new updated Notes app was introduced with a new icon, templates including a to-do list and the area to type on is a close-up of a actual notepad with animations of flipping through pages when a user clicks on the page up or down butons; rendering the app pretty GPU-intensive. Hence, the animations were more exciting than in Iris OS '18. The file manager also now has tabs. Iris Chat and iriSoft Error Scanner are pre-installed.

Core features
Alt+Tab (on Windows keyboards) now shows up Firefox or SafeBrowser tabs. iriSoft added in this feature because they thought they'd make Onyx more convienent to use. The start screen now has widgets that users can put on the start menu, and users can add them with the plus "+" button on the top right of the start menu. Users can even move them to the desktop.

User interface
iriSoft made a new UI for the OS - Aurora Shell, which includes a wallpaper-matching color for the dock and transparency in the UI elements, similar to Windows Aero used in Windows Vista and 7. It also includes some new, exciting animations that made the OS "more intuitive".

Development
Onyx began development in 2018, with the codename "Vertigo", and based off of Iris OS '18. The same year, a milestone 1 developer preview was released in July in that year. In the developer preview, the UI was called "NDE", a alpha version of Aurora UI. The version number calls itself as "ecSoft Codename Vertigo Dev Preview". In August 2018, a milestone 2 pre-beta version was compiled, with he UI now calling itself just "Aurora" instead of Aurora UI. It was announced in August 2018 as "Onyx". Milestone 2 includes a beta version of the new Notes app, widgets, and a redesigned display properties panel.