使用了sketch measure的代码，虽然是MIT，也要声明一下吧
https://github.com/weixin/WeSketch/blob/50893144c8d5e533ac4ee5af786edfc273469124/WeSketch.sketchplugin/Contents/Sketch/common.js

[https://github.com/utom/sketch-measure/blob/master/Sketch%20Measure.sketchplugin/Contents/Sketch/library/common.js](https://github.com/utom/sketch-measure/blob/master/Sketch%20Measure.sketchplugin/Contents/Sketch/library/common.js)