Color Manager should not appear in Software
If I open the Installed tab of Software, I see Color Manager. This shouldn't appear because it is not an application. I do not see it in my desktop, so why should I see it in Software? (It appears the only way for the application to be launched is to use the Launch button in Software: there's really no other way to tell it is installed.)
Problem seems to be that org.gnome.ColorProfileViewer.desktop contains the line NotShowIn=GNOME. @matthiasc has previously requested that Software show all applications even if the application uses NotShowIn, but this should probably be revisited as we surely do not want applications to appear in Software if they're going to be invisible once installed.