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Version: 4.0

Features

Global Shortcuts​

Click here to see an overview of all global shortcuts.

GameSwitcher​

The GameSwitcher is designed to be the central user interface of Onion. Launch the GameSwitcher by pressing the MENU button. The last game played will be resumed in a few seconds, and with the simple press of a button, save your progress and turn off the console.
It also allows you to quickly change games and many other features:

  • Quick boot your last played game.
  • Quickly switch games from your history.
    • Remove a game by pressing X.
  • Full overlay with accurate brightness, battery readings and playtimes.
    • Press SELECT to toggle playtime display.
  • Minimal view mode: Press Y to toggle.
  • Improved Sleep Mode with full game suspension (press POWER).
  • Low battery indicator: Red frame when <15% (can be adjusted in Tweaks).
  • When the battery goes below 4%, the device will automatically save and exit to prevent losing progress.

Package Manager​

  • Choose the systems and apps you need.
  • Optimized presets, homebrew apps, and more.
  • Packages are divided into three sections:
    • Verified: Contains all verified systems (see Emulators for more information).
    • Apps: Contains all the included Onion and third-party apps.
    • Expert: Contains experimental/expert systems (see Emulators for more information).
  • To reinstall a package, first toggle it off and press START to apply, then open Package Manager, toggle it on and apply.

Tweaks​

Make Onion your own!

  • System settings: Startup behavior, auto-save and exit, vibration
  • Custom shortcuts: Single/long/double press MENU, and launch apps or tools via X or Y in MainUI
    • Known limitation: Some apps can't be launched this way (for now only Music Player / GMU is known not to support this)
  • User interface: Show/hide recents/expert tabs, theme overrides
  • Advanced: Quick access to advanced emulator settings, plus a submenu to reset different settings
  • Tools: Sort favorites, fix thumbnails, remove OSX system files

  • The Search app lets you search all your games.
    • Note: For now only verified systems are supported (the ones that are in the Games tab).
  • You'll find Search under Apps - and it's a popular choice for mapping to X or Y (via Tweaks).
  • When a search is active, the results will be shown under Games › Search, you can remove the search again by choosing "Clear search".
  • "Missing caches" lists all systems which haven't been cached yet, and thereby haven't been included in the search.
    • Reason: All game caches are cleared everytime you "Refresh all roms".
    • Solution: Go into each system you want included in the search.

Filter

  • Filter is available via Package Manager › Apps, installing it will add the following shortcuts at the bottom of each game list:
    • Filter: Will prompt you to enter a keyword for filtering the selected game list.
    • Refresh roms: Will refresh roms only for the selected game list.
  • Note: If you're using a miyoogamelist.xml you will need to add an entry for ~Filter.miyoocmd and ~Refresh roms.miyoocmd.

Themes​

Activity Tracker​

  • Track your game playtimes (format h:m).
  • View your total playtime in the top bar (format h:m).
  • Share your playtimes by taking a screenshot (press MENU+POWER - screenshot is saved in Screenshots).

RetroArch​

Rebuilt for Miyoo Mini - synched with RA main

  • Save State Thumbnails enabled
  • Compiled and partially rebuilt by Eggs for precision and performance

    Custom audio driver, custom scalers, new display driver, and a new input driver

  • Minimal input and audio lag
  • Customs cores
  • Fine-tuned with optimal best settings for the Miyoo Mini in mind
  • Crisp 640×480 resolution
  • Can also work as a game launcher

    Cores embedded, playlists and favorites unlocked

  • Rotation support for arcade games
  • Custom video filters

    You can now modify, or create your own

Some examples of video filters made for this RetroArch port (click to view full resolution):

Normal_3X:

LCD filters, click to magnify (Integer scaling):

Guest Mode​

Guest mode is a separate profile so you can safely lend your device to your kid or your friend. The profile contains the following properties:

  • Saves
  • States
  • Video filter and scaling options
  • Core options
  • Custom button remapping layouts
  • RetroArch history

    The Game Switcher list will be different to reflect this

  • RetroArch playlists and favorites
  • Timers for your games Play Activity app
  • RGUI config RetroArch Graphic User Interface

Personal files gathered in one place​

Your saves and most of your preferences are now in /Saves (Example: D:/Saves/). This also includes your secondary profile, your config files, RetroArch lists and play activity database. Simply copy this folder when you want to backup your data.

MainUI improvements​

  • Battery percentage is shown in the top bar

    You can configure the battery percentage visibility and color in the theme configuration file. It is also possible to make a theme that only shows the percentage text.

  • No more audio lag Credit: Eggs
  • New default theme inspired by the Lilla theme by Evolve Credit: DiMo
  • OnionOS icon by Evolve
  • Textures are compressed for faster results Credit: DiMo
  • Box art size fix in the included themes Credit: DiMo

Other​

  • Many additional systems supported
  • Experimental Arduboy support Credit: JMARoeder
  • Updated PICO emulator to Fake08 standalone Credit: Supergrom
  • Support for game system icon packs

    Drag and drop custom icons into the Icons folder at the root of your SD

  • Boxart moved to /Roms/[SYSTEM]/Imgs for easier scraping
  • Various bug fixes and optimizations