Question for the 8th AF Fighter Group or 56 FG experts.

[rpeck350]

The 56 FG in early 1944 painted the nose of there P-47's in squadron color's.
The 61st FS and 62nd FS there is no question on these color's .
The 63rd FS is another question.
Thought I read that they used a sky color before they went to a blue color.
This was used for a very short time , a week or so.
Is this correct or am I dreaming.
If this is correct any photo's or documents?
Thank you for your time.
Rick