The standard will be as for the Opaline Clearwing Sky, Cobalt, Mauve, Violet or Grey except for the following details:
The expression of yellow coloration will vary dependent upon which of the yellowface mutations is visibly present in each case, ie Yellowface Mutant 1 will be lemon yellow, Yellowface Mutant 2 double factor will be buttercup yellow and Goldenface double factor will be deeper yellow. The otherwise white areas of the mask, frontal, crown and the very faintly discernible undulations at the back of the head will be in the shade of yellow coloration appropriate to the Yellowface mutant form.

General Body Color	on cheeks, back of head and neck will have a light flush of the appropriate shade of yellow visible on the otherwise white areas at the edge of the markings.
Mask	Yellow, with the throat spots completely absent or only very faintly visible greyish/white in color. The Yellow of the mask extending over the frontal and crown, to merge with the faintly visible undulations at the back of the head. The frontal and crown should be clear and free from all markings.
Markings	on cheeks, back of head and neck will have a light flush of the appropriate shade of yellow visible on the otherwise white areas at the edge of the markings. Wings may have a very light flush of the appropriate shade of yellow visible on the otherwise white areas at the edge of minimal body color markings.
Cere	Blue in cocks, brown in hens.
Eyes	Black with a white iris
Cheek Patches	Violet.
Primary Wing Flights	Grey/white.
Primary Tail Feathers	Neutral with ground or body color suffusion. Secondary tail feathers:blueish/grey at the tip, an overlay of the appropriate shade of yellow on the otherwise white areas is permissible.
Feet and Legs	Blue/grey