Add more colour to help banners about claide

[fabiopelosin]

Also the default command might use a more prominent > and this character could be coloured in hello to make it pop out.

[alloy]

Looks very nice!

Be sure to make it overridable and not assume colours but ANSI codes. E.g. in RubyMotion we don’t use colours, but we do use bold etc.

[fabiopelosin]

Closed by: b2c321d

[AliSoftware]

Actually regarding the default subcommand, I realized only lately that the - was indicating the default command (especially because the - character is less visible than *).

I think a better standard would be to invert those two, and use - for non-default subcommands and * for the default one. Or use - for non-default, and + for the default one.

Or maybe the characters used here come from inspiration from some UNIX commands?

[fabiopelosin]

There is no a functional reason why those characters where picked. Regarding the suggestion makes sense to me.