Why is it like that? If the domain is owned by Squarline and Squarline is not attached legally in any manner to LVGL other than using LVGL (which is OpenSource) then Squarline is actually commiting Trademark infringement by having that domain. Have a lawyer draft up a cease and desist of use and a release ownership of it to LVGL LLC.
I cannot imagine that the domain is owned by LVGL LLC and has that for an opening page.