The Colour object:
struct Colour { byte alpha; byte red; byte green; byte blue; };
Predefined colours:
#define TRANSPARENT argb(0xFF,0xFF,0xFF,0xFF) #define BLACK rgb(0x00,0x00,0x00) #define WHITE rgb(0xFF,0xFF,0xFF) #define BLUE rgb(0x00,0x00,0xFF) #define YELLOW rgb(0xFF,0xFF,0x00) #define GREEN rgb(0x00,0xFF,0x00) #define MAGENTA rgb(0xFF,0x00,0xFF) #define RED rgb(0xFF,0x00,0x00) #define CYAN rgb(0x00,0xFF,0xFF) #define GREY rgb(0x80,0x80,0x80) #define GRAY rgb(0x80,0x80,0x80) #define LIGHT_GREY rgb(0xC0,0xC0,0xC0) #define LIGHT_GRAY rgb(0xC0,0xC0,0xC0) #define PALE_GREY rgb(0xE0,0xE0,0xE0) #define PALE_GRAY rgb(0xE0,0xE0,0xE0) #define DARK_GREY rgb(0x40,0x40,0x40) #define DARK_GRAY rgb(0x40,0x40,0x40) #define DARK_BLUE rgb(0x00,0x00,0x80) #define DARK_GREEN rgb(0x00,0x80,0x00) #define DARK_RED rgb(0x80,0x00,0x00) #define LIGHT_BLUE rgb(0x80,0xC0,0xFF) #define LIGHT_GREEN rgb(0x80,0xFF,0x80) #define LIGHT_RED rgb(0xFF,0xC0,0xFF) #define PINK rgb(0xFF,0xAF,0xAF) #define BROWN rgb(0x60,0x30,0x00) #define ORANGE rgb(0xFF,0x80,0x00) #define PURPLE rgb(0xC0,0x00,0xFF) #define LIME rgb(0x80,0xFF,0x00)