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Ozone (GUI)

Ozone is the default graphical user interface (gui) of RetroArch. Based on the Switch's menu design, this menu driver was introduced in RetroArch 1.7.6.

Ozone's startup screen

Keyboard key assignments may differ by platform and configuration: Most of the examples below are for PC.

Ozone's main categories and playlists are in a column on the left, and subcategories are in a panel to the right. A third column will appear on the right hand side when certain selections are made.

Ozone's menu structure

Entering a subcategory will hide the top-level menu's text labels. When you return to Main Categories, the descriptions will reappear. The sidebar does not collapse while in Main Menu or Settings.

If you want the labels to always be hidden, go to Settings> User Interface> Appearance, then turn Collapse the Sidebar on.

Ozone's menu structure (History menu)

Ozone is controlled like any other user interface. Regular input binds will apply, and binds here are defined in terms of the RetroPad, RetroArch's gamepad and joystick abstraction.

Controller Default PC Action
A button Z/ENTER/Left mouse click Accept/OK
B button X/Backspace/Right mouse click Back/Cancel
D-pad Up/Down/Left/Right Arrow keys Scroll through menu options
N/A Right shift Toggle description label
N/A S key Toggle search
N/A F1 Toggle quick menu
N/A F5 Toggle desktop menu

See Input and Controls.

Searching through lists with the keyboard

When using a keyboard, it can be slow to navigate a large list using gamepad-like controls. To help this, you can type / (forward slash) or S (S key) at any time to bring up a search box.

Type a search string and hit Return. The cursor should jump to the first entry that matches.

The search will match mid-path strings. However, if a match is found at the beginning of the path (like when searching for the first letter), the start-of-path match will take priority.


See Input and Controls.


Ozone, example of a thumbnail

Thumbnails appear in a side bar on the right side of the screen. With a playlist item selected, you can press the spacebar on your keyboard to toggle the full-screen view on/off.

The default thumbnail is Boxart. Two thumbnails can be displayed simultaneously by going to Settings> User Interface> Appearance and enabling Secondary Thumbnail. The user can choose to display boxart, the title screen, or a gameplay screenshot.

Ozone, full screen thumbnail


Ozone has OK, Cancel, Notice and Scroll sound effects. It also has background music, created by ViRiX Dreamcore.

These are turned off by default. To enable them, go to Settings> Audio> Menu Sounds and turn on the Mixer. Then in the same menu, turn on the sounds you want (the background music option is called Enable BGM Sound).

Applying shaders

See the shaders user guide.


Ozone has a range of color schemes to choose from. They can be found in Settings> User Interface> Appearance> Color Theme.

Ozone, examples of themes