What post-production lab?
I've seen this and the color credits say..
always cut olff
..This was released by Warner Bros.-Seven Arts but it's Eastmancolor, but no lab (De Luxe or Pathe would be the obvious, no Tech.credit. in the 70s a lot of the low budget kids flicks had :"Candy Cane Kiddie Color". Still a pretty good non Disney favorite, with some nice gags as the Ranger (during the "Wonder of Crhistmas" song) almost asleep in the station but waking up with his fireplace lit,to see singing flames..and I love the "WOnder of Christmas song"!
BTW for me, ONLY the 'Ranger" hosted version.