I am using the IconPacks v5.0.0.90 browser with the MahApps.Metro.IconPacks 6.2.1 (MahApps.Metro 2.4.11, MahApps.Metro.IconPacks 6.2.1). The browser shows the Kind for the selected icon as FileEditAltLine:
But it does not compile with the error message that the Kind value is invalid:
I used IntelliSense to pick the closest kind and it looks like the value should be FileEditAlt.