Theme Folder Structure

For a theme to function as intended, you will need to use the proper folder structure containing all your files in the correct place. Below is an example of the correct structure that you can replicate if you are creating/editing a theme.

.
├── credits.txt
├── font
│   └── default.bin
│   ├── header
|   │   └── default.bin
│   ├── footer
|   │   └── default.bin
│   ├── panel
|   │   └── default.bin
├── glyph
│   ├── muxlaunch
│   |   ├── explore.png
│   |   ├── favourite.png
│   |   ├── history.png
│   |   ├── apps.png
│   |   ├── info.png
│   |   ├── config.png
│   |   ├── reboot.png
│   |   ├── shutdown.png
├── image
│   ├── bootlogo.bmp
│   ├── overlay.png
│   ├── static
│   |   ├── muxlaunch
│   |   |   ├── explore.png
│   |   |   ├── favourite.png
│   |   |   ├── history.png
│   |   |   ├── apps.png
│   |   |   ├── info.png
│   |   |   ├── config.png
│   |   |   ├── reboot.png
│   |   |   └── shutdown.png
│   |   └── muxinfo.png
│   └── wall
│       ├── default.png
│       ├── muxtester.png
│       └── muxcharge.png
├── scheme
│   ├── default.txt
│   └── muxtester.txt
└── sound  

In the above example, there are some files here that are not necessary to have a working theme - however the elements included above show off the amount of possible customisation available.

font - Here is where you can place custom fonts compiled into a .bin format. Fonts placed in the panel subfolder will override the font used for list items. Fonts placed in the header subfolder will override the font used for the header. Fonts placed in the footer subfolder will override the font used for the footer.
glyph - Place png images for list item glyphs. See Theme Folder Structure Glyphs section for full list of names.
image - Place all image assets of your theme here. Animated images are also supported (use .gif).
- static - Images can be set to sit on top of other elements. They are named following their associated program.
- wall - All backgrounds used sit here. Anything named default.xxx is applied on all programs without dedicated assets.
scheme - The brain of the theme. This file will tell your device how windows and text should appear per program, and will also tell your device how to use the files you have dropped into your image folder.
sound - These folders will contain files heard during your time in the muOS menus.

Theme Folder Structure Glyphs

The following images are used for populating the glyphs displayed in the headers, footers, and list items.

Note: If your theme does not supply images for the glyphs below then it will fall back to built in default images. If you want to hide glyphs you will need to adjust the appropriate settings in your scheme file. For example disable list item glyphs you would set these settings in your scheme file:

[list]
LIST_DEFAULT_GLYPH_ALPHA=0
LIST_FOCUS_GLYPH_ALPHA=0

.
├── credits.txt
├── font
├── glyph
│   ├── footer
│   |   ├── a.png
│   |   ├── b.png
│   |   ├── c.png
│   |   ├── menu.png
│   |   ├── x.png
│   |   ├── y.png
│   |   ├── z.png
│   ├── header
│   |   ├── bluetooth.png
│   |   ├── capacity_0.png
│   |   ├── capacity_10.png
│   |   ├── capacity_20.png
│   |   ├── capacity_30.png
│   |   ├── capacity_40.png
│   |   ├── capacity_50.png
│   |   ├── capacity_60.png
│   |   ├── capacity_70.png
│   |   ├── capacity_80.png
│   |   ├── capacity_90.png
│   |   ├── capacity_100.png
│   |   ├── capacity_charging_0.png
│   |   ├── capacity_charging_10.png
│   |   ├── capacity_charging_20.png
│   |   ├── capacity_charging_30.png
│   |   ├── capacity_charging_40.png
│   |   ├── capacity_charging_50.png
│   |   ├── capacity_charging_60.png
│   |   ├── capacity_charging_70.png
│   |   ├── capacity_charging_80.png
│   |   ├── capacity_charging_90.png
│   |   ├── capacity_charging_100.png
│   |   ├── network_active.png
│   |   ├── network_normal.png
│   ├── muxapp
│   |   ├── app.png
│   |   ├── archive.png
│   |   ├── dingux.png
│   |   ├── flip.png
│   |   ├── moonlight.png
│   |   ├── music.png
│   |   ├── portmaster.png
│   |   ├── ppsspp.png
│   |   ├── retroarch.png
│   |   ├── rgbcontroller.png
│   |   ├── task.png
│   |   ├── terminal.png
│   ├── muxarchive
│   |   ├── archive.png
│   |   ├── installed.png
│   ├── muxassign
│   |   ├── core.png
│   |   ├── default.png
│   |   ├── system.png
│   ├── muxconfig
│   |   ├── clock.png
│   |   ├── general.png
│   |   ├── language.png
│   |   ├── network.png
│   |   ├── service.png
│   |   ├── theme.png
│   ├── muxgov
│   |   ├── default.png
│   |   ├── governor.png
│   ├── muxinfo
│   |   ├── credit.png
│   |   ├── system.png
│   |   ├── tester.png
│   |   ├── tracker.png
│   ├── muxlanguage
│   |   ├── language.png
│   ├── muxlaunch
│   |   ├── apps.png
│   |   ├── config.png
│   |   ├── explore.png
│   |   ├── favourite.png
│   |   ├── history.png
│   |   ├── info.png
│   |   ├── reboot.png
│   |   ├── shutdown.png
│   ├── muxnetprofile
│   |   ├── profile.png
│   ├── muxnetscan
│   |   ├── netscan.png
│   ├── muxnetwork
│   |   ├── address.png
│   |   ├── connect.png
│   |   ├── dns.png
│   |   ├── enable.png
│   |   ├── gateway.png
│   |   ├── identifier.png
│   |   ├── password.png
│   |   ├── status.png
│   |   ├── subnet.png
│   |   ├── type.png
│   ├── muxoption
│   |   ├── core.png
│   |   ├── governor.png
│   ├── muxplore
│   |   ├── favourite.png
│   |   ├── folder.png
│   |   ├── history.png
│   |   ├── rom.png
│   ├── muxfavourite
│   |   ├── favourite.png
│   ├── muxhistory
│   |   ├── favourite.png
│   |   ├── history.png
│   ├── muxrtc
│   |   ├── day.png
│   |   ├── hour.png
│   |   ├── minute.png
│   |   ├── month.png
│   |   ├── notation.png
│   |   ├── timezone.png
│   |   ├── year.png
│   ├── muxstorage
│   |   ├── bios.png
│   |   ├── catalogue.png
│   |   ├── config.png
│   |   ├── content.png
│   |   ├── language.png
│   |   ├── music.png
│   |   ├── network.png
│   |   ├── save.png
│   |   ├── screenshot.png
│   |   ├── theme.png
│   ├── muxsysinfo
│   |   ├── capacity.png
│   |   ├── cpu.png
│   |   ├── device.png
│   |   ├── governor.png
│   |   ├── kernel.png
│   |   ├── memory.png
│   |   ├── service.png
│   |   ├── speed.png
│   |   ├── temp.png
│   |   ├── uptime.png
│   |   ├── version.png
│   |   ├── voltage.png
│   ├── muxtask
│   |   ├── backup.png
│   |   ├── clear.png
│   |   ├── ethernet.png
│   |   ├── junk.png
│   |   ├── network.png
│   |   ├── retroarch.png
│   |   ├── sdcard.png
│   ├── muxtheme
│   |   ├── theme.png
│   ├── muxtimezone
│   |   ├── timezone.png
│   ├── muxtweakadv
│   |   ├── accelerate.png
│   |   ├── brightness.png
│   |   ├── font.png
│   |   ├── led.png
│   |   ├── lock.png
│   |   ├── offset.png
│   |   ├── retrowait.png
│   |   ├── state.png
│   |   ├── storage.png
│   |   ├── swap.png
│   |   ├── theme.png
│   |   ├── thermal.png
│   |   ├── usbfunction.png
│   |   ├── verbose.png
│   |   ├── volume.png
│   ├── muxtweakgen
│   |   ├── advanced.png
│   |   ├── battery.png
│   |   ├── bgm.png
│   |   ├── brightness.png
│   |   ├── colour.png
│   |   ├── hdmi.png
│   |   ├── hidden.png
│   |   ├── interface.png
│   |   ├── shutdown.png
│   |   ├── sound.png
│   |   ├── startup.png
│   ├── muxvisual
│   |   ├── backgroundanimation.png
│   |   ├── battery.png
│   |   ├── bluetooth.png
│   |   ├── boxart.png
│   |   ├── clock.png
│   |   ├── counterfile.png
│   |   ├── counterfolder.png
│   |   ├── dash.png
│   |   ├── folderitemcount.png
│   |   ├── friendlyfolder.png
│   |   ├── name.png
│   |   ├── network.png
│   |   ├── thetitleformat.png
│   ├── muxwebserv
│   |   ├── browser.png
│   |   ├── ntp.png
│   |   ├── resilio.png
│   |   ├── shell.png
│   |   ├── sync.png
│   |   ├── terminal.png
├── image
├── scheme
└── sound

Program Names

muOS has numerous programs, so they are individually named so that you Themers can set different properties for every single page if you so wish to do so! Anything named default.xxx in the above folder structure can be renamed to mux... to apply ideas to single pages.

You can also set images to appear for individual list items (see the files above under ./image/static/muxlaunch/.

Caution - as muOS is a constantly updating system, there is a high chance that in time, list items will be added or removed from sections. Be wary of this when creating graphics that show all the options for a program.

Check out the updated naming conventions of all modules below;

Program Name	Function	List Item Names
muxapp	Dynamic applications page	List item wallpapers named directly after application names. Default example here; Archive Manager / Dingux Commander / GMU Music Player / Moonlight / PortMaster / RetroArch / Simple Terminal / Task Toolkit
muxarchive	Archive Manager page	-
muxassign	Shows when assigning a core to a folder	-
muxcharge	Charging Screen	-
muxconfig	Configuration page	general / theme / network / service / clock / device
muxcredits	-	-
muxfavourite	Favourites page	-
muxgov	-	-
muxhistory	History page	-
muxinfo	Information page	tester / system / credit
muxlanguage	-	-
muxlaunch	Main Menu	explore / favourite / history / apps / info / config / reboot / shutdown
muxnetprofile	Network Profiles (within Wi-FI).	-
muxnetscan	Shows when scanning for networks.	-
muxnetwork	Wi-Fi Network Page	enable / identifier / password / type / address / subnet / gateway / DNS / status / connect
muxoption	-	-
muxpass	Passcode Lock Screen	-
muxplore	Content Explore Page	Use `MUOS/info/catalogue` outside of themes to create list item wallpapers.
muxpower	-	-
muxrtc	Date and Time page	year / month / day / hour / minute / notation / timezone
muxsplash	-	-
muxstart	-	-
muxstorage	Storage Migrate/Sync	bios / config / catalogue / fav / music / save / screenshot / theme
muxsysinfo	System details	version / kernel / uptime / cpu / speed / governor / memory / temp / service / capacity / voltage
muxtask	Task toolkit page	-
muxtester	Input Tester	-
muxtheme	Theme Picker page	-
muxtimezone	Timezone Selection	-
muxtweakadv	Advanced (within General Settings)	swap / thermal / font / volume / brightness / offset / lock / led / theme / retrowait / android / state / verbose
muxtweakgen	General Settings	hidden / bgm / sound / startup / colour / brightness / hdmi / shutdown / battery / sleep / interface / storage / advanced
muxvisual	Interface Options (within General Settings)	battery / network / bluetooth / mux_clock / boxart / name / dash / counterfolder / counterfile
muxwebserv	Web Services page	shell / browser / terminal / sync / ntp

You are able to use sounds within your theme. Place WAVE files in to the sound directory.

Sound File	Function
back.wav	Pressing the back button
confirm.wav	Selecting an active item
keypress.wav	On Screen Keyboard (OSK) key press
muos.wav	Something secret - What could it be?
navigate.wav	Pressing UDLR buttons
reboot.wav	Rebooting the device
shutdown.wav	Shutting down the device

Theme Folder Structure

Theme Folder Structure Glyphs

Program Names

Sound Files - Navigation