/**
@defgroup pkg_lvgl LittlevGL - Open-Source Embedded GUI Library
@ingroup  pkg
@brief    LittlevGL package for RIOT

@see      https://github.com/littlevgl/lvgl

## Configuration options

The package can be configured with using several variables. These variables can
either be configured using CFLAGS or using Kconfig (via `make menuconfig`).
LVGL_TASK_THREAD_PRIO cannot be configured via Kconfig.

### Engine settings

- `CONFIG_LVGL_INACTIVITY_PERIOD_MS`: maximum inactivity period before going to sleep in ms.
  (default: 5s)
- `CONFIG_LVGL_TASK_HANDLER_DELAY_MS`: delay between lvgl task handle call in us.
  (default: 5ms)
- `LVGL_TASK_THREAD_PRIO`: lvgl task handler thread priority.
  (default: THREAD_PRIORITY_MAIN - 1)

Example of command line for changing the max activity period to 5s:

```
CFLAGS=-DCONFIG_LVGL_ACTIVITY_PERIOD=5000 make -C tests/pkg_lvgl
```

 */
