Icons: Flag PNGs
A flag is a piece of fabric (most often rectangular or quadrilateral) with a distinctive design and colors. It is used as a symbol, a signaling device, or for decoration. The term flag is also used to refer to the graphic designemployed, and flags have evolved into a general tool for rudimentary signalling and identification, especially in environments where communication is challenging (such as the maritime environment, where semaphoreis used). The study of flags is known as "vexillology" from the Latin vexillum, meaning "flag" or "banner".