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As "true color" graphic cards with 16 to 24 bits of color became common, applications began to support 24-bit colors. Terminal emulators supporting setting 24-bit foreground and background colors with escape sequences include Xterm, [ 13 ] KDE's Konsole , [ 35 ] [ 36 ] and iTerm, as well as all libvte based terminals, [ 37 ] including GNOME ...
Hidden characters are characters that are required for computer text to render properly but which are not a part of the content, so they are hidden. This includes characters such as those used to add a new line of text or to add space between words, commonly referred to as "white space characters".
The number of channels depends on whether the image is grayscale or color and whether it has an alpha channel. PNG allows the following combinations of channels, called the color type. A demonstration of the color depth in a PNG file, in bits per channel. Left: 8 bits; Right: 16 bits. Note the artifacts, adjusted contrast for clarity.
The HTML specification does not specify which video and audio formats browsers should support. User agents are free to support any video formats they feel are appropriate, but content authors cannot assume that any video will be accessible by all complying user agents, since user agents have no minimal set of video and audio formats to support.