Yes, that is a Double Recessive.
Double Recessive: A glider that is a combination of two recessive colors in one glider that creates a solid white glider with red eyes. These are bred by crossing the five following recessive trait combinations: albino x lue, creamino x leu, creaming x plat, creamino x albino, and albino x plat. You can determine which combination the Double Recessive is by looking at the lineage. (*These are referred to as Ruby Leus by The Pet Glider.) Below are the descriptions of the four combinations of the Double Recessives:
Creamino x Leucistic: will come OOP solid white and eyes will be garnet.
Creamino x Platinum : tends to come OOP solid white and by the time their eyes open a faint narrow diamond on the head and a faint stripe that does not pass the neck will appear. The diamond and stripe are a light cream color. As the glider matures, it may turn solid white and loose the diamond and stripe.
Albino x Leucistic: will come OOP completely white and eyes will be garnet.
Albino x Platinum: will come OOP completely white and eyes will be garnet. This combination also requires the leucistic gene.
Creamino x Albino: will come OOP solid white and eyes will be garnet.
With the albino versions, you cannot determine their color until they breed. However, there are some determining factors to observe when they come OOP; see the above descriptions for Albino x Leucistic and Albino x Platinum. A good determining age is between the actual OOP date to approximately 6 weeks OOP.
Gliders that are born solid white with red eyes from parents that carry the albino and leucistic gene is a potential sign of being a Double Recessive glider.
The percentage het for the offspring would be calculated by considering each color separately, just as you would any other glider.
For more color descriptions:
http://www.glidernursery.com/colors-and-descriptions.html