Waheguru Ji Ka Khalsa Waheguru Ji Ki Fateh,
I've noticed a lot of Tyar by Tyar gursikhs and bibekis who only blue dastaars, is this a rehit or is it just a personal choice of dastaar color?
I know that the Khalsa dastaar colors should be a dark blue dastaar with a basant Keski underneath but are we allowed to wear other colors?
Last, how does one become a tyar by tyar gursikh? What defines a Tyar by Tyar Gursikh?
ਸਤਿਗੁਰਬਚਨਕਮਾਵਣੇਸਚਾਏਹੁਵੀਚਾਰੁ॥