[pmwiki-users] How to get a special character - a black triangle

[Randy Brown]

How do I make a black down-pointing triangle appear?

I know how to get a checkmark: I just put in my config.php:
$FmtPV['$Checkmark'] = "'✓'";

and then use this markup: {$Checkmark}

Apparently I can't just substitute the hex unicode (0X25BC) to get the  
triangle.

Randy