FE0F
FE0F is a Unicode character with the designation "Variation Selector-16". It is part of the Variation Selectors supplement to the Unicode standard, introduced in Unicode 3.2. Variation Selectors are control characters that are used to specify an alternative glyph representation for a preceding character. FE0F, specifically, is used to indicate a preference for an emoji presentation of a character that can have both text and emoji forms. For example, when placed after a character like the "red heart" (♥), FE0F can signal that the emoji rendering should be used instead of the standard text glyph. This allows for consistent display of emoji across different platforms and applications, as it helps to disambiguate how a character should be interpreted. It is important to note that FE0F itself does not have a visual representation; it modifies the display of the character that precedes it. Its usage is primarily relevant in contexts where rich text or graphical representations of characters are employed, such as on the web or in messaging applications.