Is lvgl_adapter support RGB888? (AEGHB-1358)

[zhou88mang]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

please tell me weather lv_adapter is support RGB888?

[Horion0415]

esp_lvgl_adapter is only an adaptation layer for LVGL. Currently, LVGL v8 does not support the RGB888 color format, while LVGL v9 does. Therefore, support for RGB888 requires using LVGL v9 together with esp_lvgl_adapter.