just don’t ask using a blocking modal dialog, for the love of durga.
the least intrusive pattern of all is web apps that are just automatically always the latest version, and at worst, occasionally ask you to reload your browser so the front end matches the back end.
this is a tradeoff of course because those updates happen without consent.
63. Never indicate semantic differences with only color. Always use the trifecta of color, shape, and text. This way, people who can't distinguish colors see shapes and people who can't see shapes can hear text.
Add texture where that's possible.
via @liw