Orange on OTO indicates high chlorine.
By dead reconing, 1 gallon of 6% bleach should have brought you to about 10ppm chlorine, shock value for 0 CYA. Should be OK for your liner. I wanted to get on top of any possible algea and leave you with enough chlorine to get through the day without CYA. Let's see where you are after work. Is the pool in sun? Hows the weather?