with old version icon on desktop gone fine ... now i've this :
I cannot see an issue.
Do you specify custom icons? If so, please share details.
When testing this here, the expected icon is used:
Is the manifest pointing to the right icon files?
It is as simple as that, just check it please.
I cleared cache, reload files on web and now seem fine ... but i have an error when start index. If can help you
NOTE : in old version in sericeworker.js i put this manually
var CACHE_NAME = "$(ProjectName)";
var CACHED_URLS = [
"Manifest.json",
"IconResHigh.png",
"IconResLow.png",
"IconResMid.png",
"$(ProjectHTML)",
$(FileList)
];
is this the problem ?
bye