<p>When using PNG files (made with Paint.NET) as background images on my web site, IE7 is changing the colors and actually displaying a darker version of my images, as seen <a href="http://twitpic.com/bud1" rel="noreferrer" title="IE7 dithering">here</a>. In this image, the dark background and background image should be both #001122, and the medium background and background image #004466. But IE7 changes the images to #000C1A and #003A5B respectively. No problem with FF3.</p>

[{'answer_id': 75972, 'author': 'Lou Franco', 'author_id': 3937, 'author_profile': 'https://Stackoverflow.com/users/3937', 'pm_score': 2, 'selected': False, 'text': '<p>I think this has to do with Gamma correction.  Take a look at this</p>\n\n<p><a href="http://www.hanselman.com/blog/GammaCorrectionAndColorCorrectionPNGIsStillTooHard.aspx" rel="nofollow noreferrer">http://www.hanselman.com/blog/GammaCorrectionAndColorCorrectionPNGIsStillTooHard.aspx</a></p>\n'}, {'answer_id': 76009, 'author': 'Álvaro González', 'author_id': 13508, 'author_profile': 'https://Stackoverflow.com/users/13508', 'pm_score': 4, 'selected': True, 'text': '<p>IE has a known bug with PNG gamma info, though I thought they had fixed it in version 7 :-?</p>\n\n<p>I remove the gamma info from PNG files using "PNG Crush". I\'ve created a right-click shortcut in Windows explorer. Further info: <a href="http://www.weirdlooking.com/blog/64" rel="nofollow noreferrer">using pngcrush in windows</a></p>\n'}, {'answer_id': 76539, 'author': 'yoavf', 'author_id': 1011, 'author_profile': 'https://Stackoverflow.com/users/1011', 'pm_score': 1, 'selected': False, 'text': '<p>Additional resource on this issue: <a href="http://www.modernblue.com/web-design-blog/tweak-that-gamma/" rel="nofollow noreferrer">http://www.modernblue.com/web-design-blog/tweak-that-gamma/</a></p>\n'}, {'answer_id': 1259253, 'author': 'Community', 'author_id': -1, 'author_profile': 'https://Stackoverflow.com/users/-1', 'pm_score': 2, 'selected': False, 'text': '<p>An alternative to PNGOUT is TweakPNG. Comes with a GUI and no installer, very easy to remove the gAMA (just right click and delete it!)</p>\n\n<p><a href="http://entropymine.com/jason/tweakpng/" rel="nofollow noreferrer">http://entropymine.com/jason/tweakpng/</a></p>\n'}]
['https://Stackoverflow.com/questions/75947', 'https://Stackoverflow.com', 'https://Stackoverflow.com/users/4898/']