charBackground()charBackground() changes the background colour of the sketch. Analagous to background() in p5. If col is a float between 0 and 1, it will use colourMapper() to determine the corresponding character. Otherwise if col is a character, it will set the background to that character directly. Beware notAllowedCharacters if using direct characters.
charBackground(col)
col: Number between 0 and 1 or character. Default value:0.
Nothing