Color Themes

This template contains 4 color themes,they are green (default), cyan, blue, plain, and there is a customization color option nocolor. You can choose green with

\documentclass[green]{elegantbook} %or

where plain theme is gray for all theorem class environments and paper structures. If you want to customize the colors, please select nocolor or use color=none , then define the main, second, and third colors in the preamble section as follows: