delaboratory 介绍
delaboratory 是一个颜色修正工具，可用于修改图片的颜色和对比度。
using curves, mixer, and blending in different colorspaces (RGB/BW, XYZ/LAB,
CMY/CMYK, HSL/HSV) with floating-point precision. Each operation is stored as
an adjustment layer and you can watch a real-time preview.
