To be honest, I'm not sure what font you need. I'm running Firefox on a Windows XP machine and I've only rarely had trouble seeing the characters. I'm sure there's someone in the game with vastly far more knowledge of computers and character displays than I have who can help. Much as I hate to say, "You know, I don't know"...I'm afraid I don't know ._. Robot fail.
As for the characters, the first one is a scripted "p" shape (technically a Weierstrauss p (http://en.wikipedia.org/wiki/Weierstrass%27s_elliptic_functions) because it looks cool), the second is a "V for Victory" hand character, the third is a modified X shape (resembling a handwritten checklist-type X), and the fourth is a right arrow.
All of them came from here: http://www.bigbaer.com/reference/character_entity_reference.htm
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As for the characters, the first one is a scripted "p" shape (technically a Weierstrauss p (http://en.wikipedia.org/wiki/Weierstrass%27s_elliptic_functions) because it looks cool), the second is a "V for Victory" hand character, the third is a modified X shape (resembling a handwritten checklist-type X), and the fourth is a right arrow.
All of them came from here: http://www.bigbaer.com/reference/character_entity_reference.htm