I have Windows 10 and IconPackager 10.0.3.
As has been pointed out, Windows 10 is a work under construction and I am not knocking IconPackager in this post. It is one of my favourite pieces of software and with the standard Windows 10 icons being such 'weak sauce' I am surprised that it's not more popular.
In downloaded iconpackages, the 'Text' icon (for .txt files) never shows for me. I have to re-customise the iconpackage for it to do so.
Is this a side effect of iconpackage designers such as AceMatrix or basj working in Windows 7 instead, or is the problem more universal (i.e. other Windows 7 users don't get the text either? Would Windows 7 users have the same problem with iconpackages designed in 10?)