A small RichText panel class that maps healthpack keyword patterns to a health pack icon. It subclasses RichTextBase and sets ImagePath, HideText, and Color to show a green health pack image and hide the matched text.
using Sandbox;
[RichTextPanel( @"\b[Hh]ealthpacks?\b" )]
public class RichTextHealthpack : RichTextBase
{
public override string ImagePath => "textures/ui/health_pack.png";
public override bool HideText => true;
public override Color Color => Color.Green;
}