There are a few mutations not included in the Zebra Finch Designer. This is because the mutations in question are relatively unknown and/or resticted to a limited geographical area.
The following mutations are not included:
In addition to these, the Australian Black Bodied and the Australian Black Face are not included. The European Black Face is in all likelihood a variation of the same mutation. Visually it is somewhere between the two Australian varieties.
If you can't find a particular colour, then it may in fact be a combination that has been given a distinct name. The Zebra Finch Designer works on individual mutation names only. Some possible combinations include the following: