If it's still crisp and readable, even on a small scale or printed in reverse (i.e. a white design on a black background), it's a good logo - if not, try again.
如果仍然可识别，即使很小中反向打印(在黑色背景上打印白色)也如此，那么它就是一个好的logo。反之，就需要重新设计。
It is unknown who created and distributed the image, which some believe has racial overtones because it shows Mr Obama as a black-and-white minstrel in reverse.
目前还不知道是谁制造并散布这些海报，有人相信是种族主义的暗示，因为这些海报表明奥巴马是个游吟与黑白之间的人。
Also select "Reverse" to make the black on top with white at the bottom.
选择反转，使得黑色在上方，白色在下方。
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