http://www.weddingfever.net/color-design/
Color Design
What does the 'base color' of a t-shirt design mean?
(Pardon for my bad grammar..)
This may sound a little noobish but I have little knowledge about designing a tshirt so I have no idea what base color means. Is it the color of the shirt? Or maybe color of the design?
What does it mean when it says " The design must be on a white and grey base." ?
HELP PLEASE 
It's the basic underlying color of the fabric
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