Same here I use light dme 90% of the time. The only other time I didn't use it I used wheat dme for a starter for a hefe but I'm sure light dme would've also been fine.
If you're pouring off the liquid it won't matter at all. Even if you keep the liquid it is about 1/3 of a gallon when all is said and done of a 5 gallon batch. You won't notice it.
the few AG batches i've done.. i have just used a cup of extra light or light DME. that way the color wont affect my full batch. flavor is negligible because of such a small amount.