Fix unhandled message color in default and Crypto themes

[MaxLeiter]

Before	After

[astorije]

This is inherited from here and I believe it's on purpose that unhandled numerics are being dimmed out.
But I'm actually curious, what made you feel this needed fixing?

[MaxLeiter]

At first I was unable to see the numbers, then realized they were there, just incredibly dim. Felt sloppy/unintentional to me for them to be "kind of" visible.

[astorije]

Right, but note that this is true for the default theme as well, which I think needs fixing too.
What do you say we instead:

• Put same color than the timestamp for both Example (we really need a name lol, once we derive from the Shout color!) and Crypto
• Move that design element from style.css to example.css to make themes independent from default stylesheet, in the continuity of Fix a left margin appearing on all non-default themes #615 and Move Shout theme borders to example theme #359 ?
• Make sure Morning and Zenburn are still OK

[MaxLeiter]

Done, @astorije. Both morning and zenburn already handle unhandled messages:

Morning and Zenburn

[xPaw]

Could this be a muted color, not completely black? It's slightly confusing as it might seem like a normal nickname, maybe we need to add an icon before the numeric?

[astorije]

@MaxLeiter, could you make it #ddd like #chat .time?

[MaxLeiter]

Done