thanks everybody, sorry OSS its too late to show the process but i can take better pictures, basically i cut out a matching rectangular piece of plexiglass, sandpapered the edges
then i had this nice opaque black thick foil where one side was sticky, they use this to cover up windows if youre indoor growing
i used a milkbottle cap and a box cutter to cut out the circles and then i sticked the foil on the plexi rectangular
and that piece i superglued to the frame where the door was supposed to be
just too simple, im really no tecnician