Classic Gathering Icons Map

For when flying around gathering ore/herbs all day, is there a non-bannable addon that "changes" the icon(s) on the minimap for whichever ones you set? For example if I only wanted to farm drac ore and writhebark. Is there a way to see which is which without cursoring over every yellow symbol that comes up..? via /r/wow https://ift.tt/DSYzoQx