The ebuild for dev-perl/gtk2-trayicon-0.03 atates that the packages is only available for x86 platform, while in fact it is available for all the others too
Created attachment 77661 [details, diff] Ebuild fix
please reassign this to whatever arch you want to have keyword the package. I don't believe you have actually tested this package on all those archs so you patch isn't valid.
Created attachment 77663 [details, diff] Fixed patch - only list platforms that the package was actually tested on.
next time do not provide a patch... it's not needed for keywording requests. Just add the summary you added and a simple description of what you want with an emerge info. Thanks anyway