Control Pictures
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The Control Pictures block (U+2400–U+2426): 39 visible representations of ASCII control characters and the space. Each glyph shows the abbreviation of its corresponding control code inside a pictograph, making invisible characters visible. Includes ␀ (NUL), ␇ (BEL), ␈ (BS), ␉ (HT/tab), ␊ (LF), ␍ (CR), ␛ (ESC), ␣ (SP), and ␡ (DEL). Widely used in terminal emulators, protocol documentation, text editors, and character-set reference charts.
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