What do the color bubbles mean?

When viewing a list of products, the color bubble that appears in each row denotes how many units for that products are currently in stock.

	Red denotes a product which is out of stock
	Yellow denotes a product which has only 20 or fewer units left in stock
	Green denotes a product with more than 20 units in stock

If you rest your mouse over a color bubble an info box will appear showing the precise number of units in stock for that product.