I´m making a friend of mine a little DVD with the ten first episodes of the TV series Lost.
My vision of the menu is the following: then short pieces of text saying "Episode one", "Episode two", and so on scattered on the screen. What I would like to learn is how to make all the pieces of text, except for the one chosen with the remote controller, have an opacity of, say, 30%. Then the chosen text would have an opacity of 100%. Opacity would change as you scroll though the pieces of text (=buttons).
I´ve been studying subpictures, think doing this opacity thing has got something to do with them?