Orange (colour) philosophy of ancient China, orange was the colour of transformation. In China and India, the colour took its name not from the orange fruit, but from saffron, the finest and most expensive dye in Asia. According to Confucianism, existence was governed by the interaction of the male active principle, the "yang", and the female passive principle, the "yin". Yellow was the colour of perfection and nobility; red was the colour of happiness and power. Yellow and red were compared to light and fire, spirituality and sensuality, seemingly opposite but really complementary. Out of the interaction between the two came orange,
Unit Colour Patch was assigned a colour and the Brigade HQ colour patches were the Divisional shape in the Brigade colour. Each Battalion in each Brigade was then assigned a colour, and the patch was split horizontally with the Battalion colour across the top of the field and the Brigade across the bottom of the field. Light Horse, Artillery, Engineer and Medical units were also allocated colour patches. Light Horse patches were divided diagonally. In total over 300 individual patches were authorized during the war. Military Order 206/21 in 1921 authorised the use of Unit Colour Patches for the Citizen Military Forces (CMF),