**New Features**
* Runtime font accessors and new symbol fonts for text, launcher, statusbar, and shared icons.
* Added font height base setting to device.properties
* Text fonts now have 3 sizes: small, default, large
**Improvements**
* Renamed `UiScale` to `UiDensity`
* Statusbar, toolbar and many UI components now compute heights and spacing from fonts/density.
* SSD1306 initialization sequence refined for more stable startup.
* Multiple image assets replaced by symbol-font rendering.
* Many layout improvements related to density, font scaling and icon scaling
* Updated folder name capitalization for newer style
* **New Features**
* Added Material Design symbol fonts and LVGL font aliases for launcher, status bar, and shared UI icons.
* **Style**
* Migrated app icons across the UI to the new symbol font system.
* Updated launcher button sizing, font styling, recoloring and icon text color for consistency.
* Default text/icon font macros set for consistent sizing across the UI.
* **Documentation**
* Updated third‑party notices to include Material Design Icons links.
* **New Features**
* Added a standalone LVGL module and enabled LVGL support in the simulator for richer local UI testing.
* **Refactor**
* HAL and LVGL split into distinct modules; startup and device attach/detach flows reorganized for clearer lifecycle management.
* Public APIs tightened with clearer nullability/documentation.
* **Bug Fixes**
* More consistent LVGL start/stop and device attach/detach behavior for improved stability.
* **New Features**
* Added a HAL device module providing device enumeration, type queries and a HAL↔kernel bridge.
* **Improvements**
* Integrated HAL module into startup; standardized module names, includes and lifecycle logging; safer file append behavior; broader build support.
* **API Changes**
* Driver lifecycle now uses explicit add/remove semantics; C and HAL device type/lookup APIs clarified.
* **Chores**
* Added module README and Apache‑2.0 license; updated build configuration to include the new module.
* **Fixes**
* Updated tests and object file handling to behave correctly.
* **New Features**
* Time and delay utilities added (ticks, ms, µs); SD card now uses an expansion-header CS pin; HTTP downloads warn when run on the GUI task and yield to avoid blocking.
* **Bug Fixes / Reliability**
* Many hard-crash paths converted to guarded checks to reduce abrupt termination and improve stability.
* **Tests**
* Unit tests added to validate time and delay accuracy.
* **Chores**
* License header and build/macro updates.
Lots of things "ported" over from the "enhanced" fork. With some adjustments here and there.
KeyboardBacklight driver (for T-Deck only currently)
Trackball driver (for T-Deck only currently)
Keyboard backlight sleep/wake (for T-Deck only currently...also requires keyboard firmware update)
Display sleep/wake
Files - create file/folder
Keyboard settings (for T-Deck only currently)
Time & Date settings tweaks
Locale settings tweaks
Systeminfo additions
Espnow wifi coexist
initI2cDevices - moved to T-deck init.cpp / initBoot
KeyboardInitService - removed, moved to T-deck init.cpp / initBoot
Adjusted TIMER_UPDATE_INTERVAL to 2 seconds.
Added lock to ActionCreateFolder
Maybe missed some things in the list.
Display wake could do with some kind of block on wake first touch to prevent UI elements being hit when waking device with touch. Same with encoder/trackball/keyboard press i guess.
The original code was written by @cscott0108 at https://github.com/cscott0108/tactility-enhanced-t-deck
- Refactor `AppManifest`: add new fields and rename existing ones
- Parse and validate the manifest from an app that is being installed.
- Remove deprecated `scoped()` from `Lock`
- Create `Tactility/Paths.h`
- App loading at boot now properly parses the manifest files of external apps
- Properly lock both source and destination locations during app install
- Remove LVGL path variants from `AppPaths` and `ServicePaths`
- Removed `xPath` base classes for apps and services. There's now `AppPaths` and `ServicePaths`.
- Renamed app and service paths: "data" and "system" paths are now "user data" and "assets"
- Update ILI9341 driver to v2.0.1
- Lots of code cleanup for apps
- Refactor app "type" into "category" and added flags to the manifest (for show/hide statusbar and for hidden apps)
- Rename some ElfApp-related functionality and improved the way the static data was managed
- Rename "filebrowser" to "files"
- Added cstring functions to tt_init.cpp
- Minor fix in Boot app
- Updated external apps for SDK changes
### Cardputer:
- Fix keyboard issue with up/down button conflict when selecting switch
- Fix backlight flickering
### UI improvements
- Removed a 3 pixel border that went around the entire desktop environment
- Improved system layout (GuiService)
- Statusbar: improved layout (mainly margin/padding)
- Toolbar: fixed margin/padding of all buttons, fixed alignment of all content
- Improved layout/UI of many apps
### Other
- Update LVGL to 9.3.0 official release (was dev version)
- Implement `UiScale` in `hal::Configuration`: small screens with no touch can now opt for a more optimized experience (e.g. Cardputer, Waveshare 1.47, Waveshare 1.3", etc.)
- Fix for Cardputer UART configuration and added I2C configuration
- Fix for software keyboard bug in Gui
- Removed deprecated fields from `hal::Configuration`
- Updated the simulator devices to use the new HAL config
- add `bool tt::hal::hasDevice(Device::Type)`
- Cleanup of `AppList` app code
- Improve `Gpio` app for small screen devices
- Added various ESP32 GCC wrappers to wrap LVGL functions (with manipulations for small screen devices)
- Moved `Launcher` assets to `assets/` subfolder
- Optimized `Toolbar` for small screen devices
- Stop showing `system/` partition in `FileBrowser` because it's read-only and not very useful. Created `config::SHOW_SYSTEM_PARTITION` to override this behaviour.
- Hide apps when their required hardware isn't available (I2C, UART, PowerDevice)
- Fix for `CYD-2432S032C` DPI setting
## New features
- Implemented support for app packaging in firmware and `tactility.py`: load `.app` files instead of `.elf` files. Install apps remotely or via `FileBrowser`.
- Ensure headless mode works: all services that require LVGL can deal with the absence of a display
- Service `onStart()` is now allowed to fail (return `bool` result)
- Added and improved various file-related helper functions
## Improvements
- Completely revamped the SystemInfo app UI
- Improved Calculator UI of internal and external variant
- Fix Chat UI and removed the emoji buttons for now
- Fix for toolbar bottom padding issue in all apps
## Fixes
- Fix for allowing recursive locking for certain SPI SD cards
& more
- Support larger ROM sizes
- Add storage status to SystemInfo app
- Made DisplayDevice more robust (drivers must specify LVGL/DisplayDriver support explicitly)
- Updated all boards to use `hal::Configuration.createDevices`
- Updated all boards to use new directory structure and file naming convention
- Refactored `Xpt2046SoftSpi` driver.
- Created `Axp2101Power` device in `Drivers/AXP2101`
- Removed global static instances from some drivers (instances that kept a reference to the Device*)
- Improved `SystemInfoApp` UI: better memory labels, hide external memory bar when there's no PSRAM
- Fix for HAL: register touch devices after displays are registered
- Fix for Boot splash hanging on WiFi init: unlock file lock after using it
- Added `tt::hal::Device` and functions (de)register devices and search for them.
- Refactored apps: `Power` and `Display` settings apps now use the device API to find devices.
- Implemented the new API for all existing drivers for all devices, including the simulator.
- Updated HAL Configuration to return `std::shared_ptr` instead of raw pointers.
- Added test project for headless tests and implemented tests for the new code.
- Create `Include/` folder for all main projects
- Fix some issues here and there (found while moving things)
- All includes are now in `Tactility/` subfolder and must be included with that prefix. This fixes issues with clashing POSIX headers (e.g. `<semaphore.h>` versus Tactility's `Semaphore.h`)
- Refactor the way apps work: Instead of a C interface, they are now C++ classes. The main reasoning is that attaching data to an app was cumbersome. Having different implementations for different kinds of apps was cumbersome too. (3 or 4 layers of manifest nesting for the TactilityC project)
- External apps are still written in C, but they get a createData/destroyData in their manifest, so:
- External apps now have their own manifest.
- All functions in the original AppManifest are removed and replaced by a single `createApp` function
- External apps now automatically register (each app individually!) when they run the first time. As a side-effect they become visible in the `AppList` app!
- Adapted all apps for the new interface.
- Adapted all internal logic for these changes (Gui, ViewPort, Loader, AppContext, AppInstance, etc.)
- Rewrote parts of Loader to use std::shared_ptr to make the code much safer.
- Added a refcount check for the `AppInstance` and `App` at the end of their lifecycle. Show warning if refcount is too high.
Ken Van Hoeylandt