for TrimUI Smart Pro(CrossMix OS)
- Download the project file.

- Copy the folder
CozyInstaller/ThemeFiles/Themes/Cozyto your SD card'sThemesfolder. - Settings -> Themes -> Cozy
Important
Your TrimUI Smart Pro's version need to be v1.3.0
You can find the latest version in https://github.com/cizia64/CrossMix-OS
It would take several copy-and-paste actions to apply a theme, so to make the process more convenient, I’ve created an app to handle it.
You can use this app by following the instructions below.
-
Place the
CozyInstallerfolder into your SD card'sAppsfolder. -
Insert the SD card into your TSP device and reboot it.
-
Switch to the Apps tab, where you’ll see an app named Cozy Installer.

-
Press A to automatically install the Cozy theme onto your SD card. This includes:
- theme deploy file
Cozy.sh - theme files
- replace all app's icon into cozy style (irreversible)
- theme deploy file
-
Navigate to System Tools -> Theme -> Cozy to switch to the Cozy theme.
-
Done! Enjoy your new theme.
Important
Your TrimUI Smart Pro must be running version 1.3.0.
You can find the latest version at https://github.com/cizia64/CrossMix-OS
The process of manual installation is exactly the same as app installation.
Therefore, I recommend using the app to install this theme.
Only consider manual installation if the app installation is not feasible for you.
This situation may arise if you’ve made significant changes to CrossMix OS's file structure.
- Download the project file.

- Copy the folder
CozyInstaller/ThemeFiles/Themes/Cozyto your SD card'sThemesfolder. - On your TrimUI Smart Pro, navigate to: Settings -> Themes -> Cozy.
- The basic theme files will now be applied
- Match and replace all normal app icon files in
/mnt/SDCard/Apps/with the corresponding files in/CozyInstaller/ThemeFiles/Apps/. - Match and replace all system app icon files in
/usr/trimui/apps/with the corresponding files in/CozyInstaller/ThemeFiles/usr/trimui/apps/. - Add the BootLogo file
/CozyInstaller/ThemeFiles/BOOT_LOGO/COZY.bmpto the folder/mnt/SDCARD/Apps/BootLogo/Images/. - Add the theme deployment file
/CozyInstaller/ThemeFiles/Cozy.shto the folder/mnt/SDCARD/Apps/SystemTools/Menu/THEME##THEME PACK (value)/. - Copy the folder
/CozyInstaller/ThemeFiles/Icons/Cozy/into the folder/mnt/SDCARD/Icons/. - Copy the folder
/CozyInstaller/ThemeFiles/trimui/res/crossmix-os/style_Cozy/into the folder/mnt/SDCARD/trimui/res/crossmix-os/. - Navigate to System Tools -> Theme -> Cozy to switch to the Cozy theme.
- Done! Enjoy your new theme.
Font noto-sans: from fontsource
I’ve previously created themes for three other open-source handheld devices. Feel free to check them out if you’re interested!
- Cosy for Miyoo Mini+
OnionOSonion-theme-cosy - Cosy for Miyoo Flip
StockOStheme-cosy-miyoo-flip-stock - Cosy for Miyoo A30
SpruceOSspruce-theme-cosy
Here are some retro console icon files available for you to use freely.
2025-03-23 All done.
CozyInstaller/
└── ThemeFiles
├── Apps
│ ├── BootLogo
│ ├── EbookReader
│ ├── EmuCleaner
│ ├── FileManager
│ ├── MusicPlayer
│ ├── OTA-update
│ ├── PortMaster
│ ├── Reboot
│ ├── RetroArch
│ ├── Scraper
│ ├── ScreenRecorder
│ │ └── icon
│ ├── SystemTools
│ ├── Terminal
│ ├── random
│ └── user_guide
├── BOOT_LOGO
├── Icons
│ └── Cozy
│ └── Emus
├── Themes
│ └── Cozy
│ ├── skin
│ └── sound
├── trimui
│ └── res
│ └── crossmix-os
│ └── style_Cozy
└── usr
└── trimui
└── apps
├── fn_editor
├── moonlight
├── player
└── usb_storage
37 directories





