#183 Option to remove vague page borders

[johan leichtenberg]

Dear support team,

Thank you for making an excellent ebook reader, even difficult books with photos are handled very well.
I have one request, when I am using the reader after twenty minutes I get "some black spots in my eye vision".
This is due to the vague color area in the middle and at the border of the pages.
I looked for an option to remove this vague area (with the purpose to make it looks more like a book, I think) but I could not find it.
If this option does not exist yet would it be possible to add such an option in a future release ?

It would make me very happy.