chore: 屏蔽 "libpng warning: iCCP: known incorrect sRGB profile" 警告 #158
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加载 PNG 图片时很可能会在控制台中弹出大批量的 "libpng warning: iCCP: known incorrect sRGB profile" 警告，十分影响控制条输入输出、调试和阅读。
各个浏览器、图像软件的做法一般都是直接忽略颜色空间信息以 sRGB 颜色空间进行显示。
图像软件在保存时，有时会嵌入颜色空间信息，一般都是各自默认的颜色空间，这些颜色空间其实都是 sRGB。作为专业的图像处理软件，肯定考虑到了 PNG 图像在各个软件中显示的问题。由图像软件生成的图像有很大的可能会在这个图像软件上再次编辑，这个颜色空间在该软件中就是最正确的，没必要让用户进行修改，否则图像软件可能还会提示让用户转换回该软件默认的颜色空间。
根据官方手册中提供的方法 (libpng-manual) 进行屏蔽。