What is the difference between ba wei (white rice cake) and huang kuey teow (yellow rice cake)?

White Kuey Teow ba wei (Fuzhou dialect) is made from pounded high-quality round-grained polished rice, which Shanghainese call rice cake (different from Fujianese rice cake).

Huang kuey teow, also known as yellow rice kuey teow, gold kuey teow, is the folk of southern Zhejiang and northern Fujian is extremely rich in traditional rice cakes, yellow kuey teow's traditional method of production is very unique, take the mountain a unique shrub burned into ash, leaching its juice (commonly known as plant alkali), with the juice of high-quality Japonica soaked until the rice color of the yellow-orange

So the two are almost the same in essence, like the rice cake