The documentation link is shown in the screenshot above.
Another question, when I try to select lvgl 8 in platformio, the most recent version is shown as dev (see below) and the non dev is 3 months old (the official announcement in this thread is only 10d old). Was LVGL 8 officially released? If so, is the official release visible in platformio?
There was a mistake on our side. PIO saw LVGL as v8.0.0 and I appended the -dev postfix, but seemingly it wasn’t updated to v8.0.0 when v8 was released. I’ll release v8.0.1 today, so it should be solved soon.