When a Samsung screen starts to turn purple, that is an indicator that the underlying AMOLED display layer is broken. It will get progressively worse until it stops being usable / viewable at all. There isn't a repair guide here yet, but here's link to similar phone to reference if you decide to repair yourself. Samsung Galaxy Alpha Display Assembly Replacement

Derek, can you email me pictures mark@mdpcservices.com

Scott, The glass is held down by a ring of adhesive around the perimeter. Heat it with a hair dryer to soften. Most tool kits that come with the replacement digitizers have a few guitar pics in them to use to pry it away from the frame. After removing the large number of #00 phillips screws... unplug the old digitizer cable & IC chip. Desolder the IC chip assembly and Home flex cable. Solder IC Chip assembly and Home flex to new digitizers cable. that's it in a nutshell. BUT getting the points juuuuuust right is tedious to say the least. Mark M.D. PC Sales and Services