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I noticed that the lines were blurred in Mozilla. Yet in Opera and IE they were pin sharp! I took a screenshot but the effect could not be seen in the screenshot.
I even turned off ClearType font smoothing in Windows. Then I tried saving my striped image in a variety of formats, namely jpg and gif, trying out all the save options possible.
Eventually I solved the problem. I had noticed the lines were pin sharp in another image I had positioned over the background, but with the lines at a different place. So here is the solution I made:
Of course I have a layout that this doesn't matter in. I could have just edited the background image, but it has to line up with another image I'm using. (I think I'll redo both images though. Sigh.)
Has anyone else come across this one? If not I'd better file it on Bugzilla!
How are designers supposed to work with crazy effects like these happening? (And no I haven't been drinking! :))
[Update: I see that moving the browser window up or down slightly causes the effect to appear and disappear. Most odd. So now it definitely affects all browsers. I'll try and get it not to happen when the browsers are maximised.]
Designers quickly discover the limits of the online medium, and there are many. It just ain't print, and print has its own limitations. And have you noticed the problems with normal definition TV graphics?
[edited by: tedster at 10:42 pm (utc) on Mar. 7, 2004]
Is your display setting set for 256 colors, High Color (16-bit, thousands of colors), or True Color (24-bit and 32-bit, millions of colors)? Only True Color can display all 16.7 million colors without dithering or color shifting.
Also, I believe that less than 60 percent of web users currently are using True Color. So designing your page for the other 40+ percent is important.
The stripes can't be saved in a web-safe palette because they fade away gradually, so many colours are needed.
I wish I could point you to a test-case, but links like that aren't allowed!
I will try and check it on a CRT monitor to see if the same effect occurs.