69 gts restoration

I have a 69 in a body shop for almost 2 years now. They always put off my car for insurance jobs. I had both rear skins replaced and if there is a problem with the tail lights, they can correct it.
Mine is a 270 Dart but I will add stripes to the rear and a 340 I have to replace the 273 that came in it. 318 when I got it.
I want to ask if the B5 paint has metaflake in it. I bought my paint over a year ago ( and delivered it to the shop ) and when they opened the cans ( sat on the shelf for over a year ), it appears to have metaflake in the top of the can. I've got to take the paint back and ask questions.
I was under the impression that it was a straight color.
Any info for me?