I realized the entire argument is a moot point.

Less is always more, on the web.

The truth: the red button above is not needed. Your browser already has a red button — the close-window button/ back button. A statement to this effect could be included in the text, which would be accordingly ignored, by most users.

This leaves only the green button. Since there is only one button: it doesn’t matter what it says or what color it is — as there is only one.

Since the window (by good design) is not a pop-up it will not cause much pause before clicking the one button — it is JUST THE INTERNET after all. I’ve never had any qualms about clicking a button while on the internet, on legit sites.

If one also make the page default to: focus on green button, then a simple enter key would solve everything. The enter arrow is universal. This would make use of another fantastic and very useful button — the enter key.

As for fonts, not all fonts are created equal. You need to start here I Love Typography and keep reading Typographica and Typophile.

Don’t bother with the rest.

As for instructions… I would say ‘click the green button’ is poor copy. Better copy would be ‘click the Anfang button’ since that will work for anyone.

Great example! The “don’t use colour to convey information” seems to be suffering from the same myth “don’t use tables!” There are good places to use colour just as there are good places to use tables.

Looking at the Camino buttons (and knowing that Safari will be much the same) - I’m wondering if we can rely on position alone to indicate function? Do you think it is enough to know that in German, the language is read from left to right and that right implies moving forward and left would be back? Would it be different in a language that reads right to left? Would we present buttons differently there? Haha - your small post has me buzzing with questions!!