looks to be just like the Screen Ruler
that I’ve been using for years (on MacOS 7,8,9 and Windows 95, 98, NT, 2000) , but now available from a new author, for OSX. Why do you want a ruler on your screen? I’ll tell you why – so you can see how big a graphic on a webpage is — so you can see how wide a layout is, so you can size graphics to fit in that area appropriately. It’s a super useful thing if you ever ever do anything visual. And even the programmiest of web programmers occasionally needs to do visual stuff. If you’re a designer, you need this, like yesterday. I think I’ve been using the original Screen Ruler since 1996 or 1997. Here’s the author with it in his .sig on usenet in 1995
. And in case you hadn’t noticed, that’s over 6 years ago. Eons in web time.
It’s a classic and necessary web development tool.