Thankfully we live ( in the 'West') in a tolerant world and the sexuality of a colleague is of no importance same as the colour, religion, sex etc is equally not relevant. What is important is the professionalism and competence of said colleague and how we are judged in that role. However... I do have concerns regarding celebrating any type of sexuality in the form of an airline paint scheme. It is inappropriate regardless of sexuality 'type'. Just my opinion.