operator
Literals
42 0x1E90FF 'w' "text" true null
Literals are the fixed values you write directly in source. 42 is a decimal int and 0x1E90FF is a hex int — hex is how colors are written, so a raw color is just an integer. A number with a decimal point (1.5) is a fixed. 'w' is a character literal, an int code point handy for comparing against Input.key(). "text" is a string, true / false are bools, and null is the null-pointer literal used to test an unset record, slice, or pointer field.
Example
let sky_color: int = 0x1E90FF
let banner: string = "GAME OVER"
if Input.key() == 'w' { row = row - 1 }
if next_segment == null { is_tail = true }