A black background behind light text makes my eyes feel like they are being sucked out of their sockets and it can mess up my vision for several minutes. I and everyone I know must have astigmatism because I've tried every major color combination I could think of, and black text on a white background always wins (except for people who have their brightness or contrast turned up too high). Text of any color on a black background is hard to read for people who have astigmatism, so reciting some old study that says dark green text on a black background is the best for everybody is silly. Maybe it makes them feel all dark and naughty? Maybe they're subconsciously saying, "Look at me, Daddy! I'm Batman! I'm Batman!"
What will they think of next?įor some reason, many people who have modern game related sites also think it's cool to have a black background (especially teens and people from the UK). A retro black background with black text on white. If you find yourself using color combinations such as the ones in the Bad Examples list on this page, smack yourself in the back of the head with a rubber chicken and promise to never do it again. There are many poor color combinations, but if you actually look at your text, don't just know what the text says in your mind because you wrote it, but actually look at how the text looks against the background, you can avoid most newbie mistakes. Although the combination of red and blue seems to be the most infamous, you'll notice that red on gray can be just as bad, and those probably aren't the only eye-abusing color combinations.
You can read about that in any old World Book Encyclopedia, but you will still see red on blue or blue on red at some web sites. The text seems to vibrate which causes eye strain. Most people who understand even a little about color know they should not use red text on a blue background ( Hard to read ), or blue text on a red background ( Hard to read ) because the normal human eye, with normal lenses, cannot focus on certain shades of red and blue at the same time. I don't think these people even look at their own web sites, and if they don't, why should anyone else? I've even seen blue backgrounds with blue text on top that's only a shade different. The EMF file format also yields the same output. The exported map below is compared against a green-colored background to portray the transparent quality of the exported map.Web sites are used to communicate with others, but if most people have a hard time reading your text, what's the point of having a web site? Some web sites have dark blue or dark purple text on a black background. The following output is the an example of an ArcMap document exported as a PNG file format with the White - White combination. Exporting in a PNG or GIF file format with any same color combination for both the Background Color and Transparent Color fields (except for the No Color - No Color combination) yield the same output. For the EMF file format, there is no Background Color setting to be specified. For the PNG and GIF file formats, select any same color combination for both the Background Color and Transparent Color fields, except for the No Color - No Color combination.Define the File Name > specify the Save as type by selecting either a PNG, GIF, or EMF file format from the drop-down menu.
Mac has gray and black background how to#
The following workaround shows how to to obtain a transparent background when exported from ArcMap:
Mac has gray and black background windows#
As a result, when the map is exported, the No Color pixels are assigned to a default background color value set in the Windows display settings. The JPEG, BMP, and TIFF file formats do not support the No Color pixels. When exporting a map as a JPEG, BMP, or TIFF file format with the Background Color field in the Export Map dialog box specified to No Color, the output map yields a solid color background, such as gray, instead of transparent. Problem: An exported map has a gray background instead of being transparent Description
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