editormd.amd.js
function(theme) {
            var editor      = this.editor;
            var oldTheme    = this.settings.theme;
            var themePrefix = this.classPrefix + "theme-";
            
            editor.removeClass(themePrefix + oldTheme).addClass(themePrefix + theme);
            
            this.settings.theme = theme;
            
            return this;
        }
function(theme) {
            var editor      = this.editor;
            var oldTheme    = this.settings.theme;
            var themePrefix = this.classPrefix + "theme-";
            
            editor.removeClass(themePrefix + oldTheme).addClass(themePrefix + theme);
            
            this.settings.theme = theme;
            
            return this;
        }
function ( theme ) { var editor = this . editor ; var oldTheme = this . settings . theme ; var themePrefix = this . classPrefix + "theme-" ; editor . removeClass ( themePrefix + oldTheme ) . addClass ( themePrefix + theme ) ; this . settings . theme = theme ; return this ; }
设置 Editor.md 的整体主题，主要是工具栏
Setting Editor.md theme

@returns {editormd}  返回editormd的实例对象
设置 Editor . md 的整体主题，主要是工具栏 Setting Editor . md theme