Some people prefer do all of their edging in black. I tend to do a mix of matching the color of the card's art along with using various grays.

有些人选择全部使用黑色来钩边，我更倾向于使用更匹配卡牌本身的一系列混合色。

youdao

The Black Satellites have battled through some adversity to reach the final, edging South Africa in extra time in the first elimination match, and surviving a pair of exciting 3-2 games that came down to the wire in the quarter and semifinals.

VOA: standard.2009.10.15