Thank you for the comments.
But why have erased
It was just what I wanted to do
1) "Vote > stars" too clear: I must edit the image files ../buttons/iconset/.. s00.gif > s45.gif. Right ?
1a) In this regard I find the magnifier "Lytebox" all too clear. (not very visible in pictures). How to change the transparency of file ../buttons/openlight.gif ?
2) Folder "Press". I would like to display images at 100%. (better reading). But the browser reduce the size and we can not navigate in the larger image which is open centered. I tried to change in the "Press" > "config.php" with "$resize_only_if_too_small=true;" But it changes nothing. How ?
3) "Options: Maximized view": How to change the background color black ? (where is the setting ?)
Thank you for answers
PS: In your FAQ, I think it lacks a section on the file "config.php" in a folder. (this is not easy to resume since all the examples the information). Is it possible to use any settings file "config.php" basis ?