Icons on Windows?
.pngs and use icotool or some other tools to create a proper .ico file..ico to package.json:build.win.icon..png to package.json:window.icon.Windows Explorer might not reflect the changes immediately, if you have everything done and still see a default icon, check with something like Resource Hacker and restart Windows Explorer.
Building for NSIS target takes a long time, what can I do?
Please follow evshiron/nwjs-builder-phoenix#7, before that you can add --concurrent to enable concurrent building, which should reduce time when building for multiple platforms.
How can I use
nwjs-builder-phoenixwith Chrome Apps?
Simply add --chrome-app to the commandline arguments which enables support for Chrome Apps.
Also configurations should be set in manifest.json instead of package.json but within the same build property.