the french flag is referred to as the blank because of its three colors
Flag of France The flag of France (French: Drapeau franÃ§ais) is a tricolour flag featuring three vertical bands coloured blue (hoist side), white, and red. It is known to English speakers as the French Tricolour or simply the Tricolour (French: Tricolore).
Palestinian flag The Palestinian flag (Arabic: علم فلسطين‎‎) is a tricolor of three equal horizontal stripes (black, white, and green from top to bottom) overlaid by a red triangle issuing from the hoist. This flag is derived from the Pan-Arab colors and it is used to represent the State of Palestine and the Palestinian people.