版本：2.4.0
- https://cdn.bootcdn.net/ajax/libs/color-thief/2.4.0/color-thief.js
- https://cdn.bootcdn.net/ajax/libs/color-thief/2.4.0/color-thief.min.js
- https://cdn.bootcdn.net/ajax/libs/color-thief/2.4.0/color-thief.umd.js
- https://cdn.bootcdn.net/ajax/libs/color-thief/2.4.0/color-thief.umd.min.js