Smart Scroll enhances regular scroll bars so they show how much of a document is displayed in a window. The indicator thumb in scroll bars becomes proportional : If a window is displaying half of a document, the thumb will be half the scrollbar size. This gives you an idea of how large the document is, without having to scroll the window to find out. Mac OS 8.5 provides applications with the possibility of getting proportional thumbs and live scrolling, but applications will need to be updated to take advantage of these features . Among applications included with Mac OS 8.5, so far only the Finder uses these features. Smart Scroll provides these enhancements for "the rest of apps", without updating applications! (Netscape, Emailer, Eudora, ClarisWorks, Word, etc).
