在创建另一个 椭圆选区 时按住 Alt 键，这样就能用这个圆减去原来那个外圆，于此你就得到下面展示的示意图那样的按钮灯外环厚度。

While holding Alt create another elliptical selection so that you would subtract the original selection to leave you with the thickness of the outer button's light as shown in the illustration below.

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花好月圆人团圆，群灯曾艳你最“好”。寄去相思和祝愿，网中情缘愿梦“圆”。

Spending a reunion, group of lamp Ceng Yan you most "good". Send acacia and wishes, the net love to dream "circle".

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元宵佳节闹花灯，灯红人喜庆佳节。举杯邀月送相思，月圆人圆乐团圆！

The lantern Festival lanterns, light red joyous holiday season. A drink on send acacia, the month circle person circle band round!

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