lv_obj_refresh_style() function
Notify an object and its children about its style is modified.
Arguments
part
the part whose style was changed. E.g. `LV_PART_ANY`, `LV_PART_MAIN`
prop
`LV_STYLE_PROP_ANY` or an `LV_STYLE_...` property. It is used to optimize what needs to be refreshed. `LV_STYLE_PROP_INV` to perform only a style cache update