In fact, for a high-latency connection like mine, it'd be nice to have one color to mean "trying to save" and another meaning "failed to save". Or maybe copy G

In fact, for a high-latency connection like mine, it'd be nice to have one color to mean "trying to save" and another meaning "failed to save". Or maybe copy Gmail's "server request pending, are you sure you want to navigate away?" pop-up.