Here are positions and color examples for ggtooltip.js

Postions

Example - data-placement

Colors

backcolor textcolor bordercolor preview
#0099cc preview
#6633cc preview
#990099 preview
#0066cc preview
#cc3333 preview
#009900 preview
#cc6633 preview
#ccffff #333333 #33ffff preview
#ccccff #333333 preview
#ffcccc #333333 preview
#99ccff #333333 preview
#ffcc99 #333333 #cc9999 preview