I had a dream guys… and I am a moron. There is no sense to add more stuff around or above transaction icons. The main feature is already implemented (and its brilliant), only needs to be expanded.
Pamac 11 have package version number colored and at the moment when a package is installed, the background is blue. When an update is available, there are two tags current version: red and new version: blue.
At the moment pending transactions have extra icon and how about removing it and just change package number tag background? This will be consistent with the general idea and require less work from guinux than adding extra stuff all around 
Yellow is pretty bad idea for background, maybe green will be better. It was pretty random choice.
