Kendall, I respect your information but like 2112 asked, what "brackets" are we talking about and probably lost in translation are we talking about the FR transaxle cooler or your Cooltech cooler?
In 2006 I purchased and installed the Ford Racing transaxle cooler on my 2006 model year GT. It looks and has brackets identical to the picture Ralphie posted. Silver in color to match the other structural elements in the engine compartment.
Since the FR transaxle cooler is an aftermarket supplied kit which has equal applicability to either a 2005 or 2006 FGT, why would there be any year specific coloring to brackets in a kit which could be installed on any FGT. I would imagine all the brackets in the Ford Racing M-7095-GT kit are silver just like pictured on Ralphie’s and my car. Now if you are talking about the Cooltech cooler which you make and supply, then most certainly you get to control what color you paint the brackets in your kit offering.
Thus perhaps there is just confusion (mine included) over which kit (FR or CoolTech) bracket color you are discussing.