文档树最好的彩色样式，给予参考

如视频所展示的一样，这是我在 trilium 上的一个大神写的文档树 css，区别于彩色的背景太过于饱满而显得过于疲倦，只展示悬停才出现颜色，左侧以线段进行归属哪个层级，这是我认为文档树最好的彩色样式。

但我不懂代码，如果有大佬觉得这个不错，可以写一个代码片段适配到思源上。

这是 trilium 大神写的代码，是以 trilium 主题为载体 https://github.com/SiriusXT/trilium-theme-blue

而我在此基础上自己瞎琢磨修改的颜色的代码，有些自己加了#号

```undefined
/*
Blue theme 
https://github.com/SiriusXT/trilium-theme-blue
version:0.3 for trilium:>0.58.4
云遥修改版，基于Blue theme 做出适合自己的修改
*/
/*
感谢云遥大佬的修改版
在云遥修改版的基础上又进行了一些符合自己习惯的调整
*/

/*云遥改动处 */
:root {
   --main-background-color: #f3f8e8;
   ;
   /* #F2F2F2 */
   /*这里调整背景颜色，并不只是编辑区。*/
   /* --launcher-pane-background-color: #FFFFFF;   /*应该是左侧启动器最左边的那个东西的颜色*/
   --main-font-family: 'Roboto Condensed';
   /* 定义字体，三个字体都是拷贝的主题Linen的设置 */
   --detail-font-family: 'Crimson Pro';
   --monospace-font-family: 'Cousine';
}


div#toast-container {
   right: 0px !important;
   bottom: 0px !important;
   top: auto !important;
   width: auto !important;
}

.switch-widget span.slider.checked {
   background-color: var(--color-blue-light) !important;
}

div.note-detail div.ck-horizontal-line.ck-widget {
   margin-top: 10px !important;
}

.ck-content hr {
   margin-bottom: 10px !important;
}


body,
span.fancytree-title {
   font-family: var(--detail-font-family) !important;
}

/*搜索时候的关键字颜色*/
.ck-find-result {
    background: #b9d2ff;
    color: var(--ck-color-text);
}

span:not(.fancytree-active) span.fancytree-title {
   font-weight: 500 !important;
}

/*目录边界的控制*/
#right-pane .card-body {
    padding: 1px !important;
        padding-top: 1px;
        padding-right: 1px;
        padding-bottom: 1px;
        padding-left: 1px;
}
/*目录左右两边边距控制*/
.toc-widget {
    padding: 15px !important;
}
#launcher-pane .launcher-button {
   color: #F0F4F4 !important;
   /* 云遥改动处 ，原值 f0f4f4*/
   background-color: var(--color-blue-light) !important;
}

.global-menu {
   background-color: var(--color-blue-light);
   width: 44px !important;
}

ul.fancytree-container li {
   contain: initial;
}

/*这里是左上角的选项图标，新加了一行是控制图标大小的，新版本图标默认很大，所以需要大小控制*/
.global-menu-button {
   background-image: url("../../../favicon.ico") !important;
   background-size: 35px !important;
}

/*受保护的标题*/
#center-pane .title-row 
.note-title-widget input.note-title.protected {
    text-shadow: 1px 1px px var(--muted-text-color);
}

div#launcher-pane.component {
   width: 44px !important;
}

#launcher-pane .launcher-button {
   width: 44px !important;
   padding: initial !important;
}

div.spacer.component {
   background-color: var(--color-blue-light) !important;
   width: 44px;
}

.dropdown,
.dropleft,
.dropright,
.dropup {
   position: initial;
}

.sync-status .sync-status-icon {
   padding: 13px 8px 8px 8px;
}

.sync-status .sync-status-icon span {
   padding: 13px 8px 8px 8px;
}

#left-pane input.search-string {
   background: rgba(255, 255, 255, 0.3) !important;
}

div.quick-search.input-group.input-group-sm.component {
   align-content: center;
}

span.fancytree-node:not(.fancytree-folder) .fancytree-expander::before {
   content: "\ec21" !important;
   visibility: visible !important;
   color: rgba(51, 51, 51, 0.1) !important;
}

div#root-widget div.gutter-horizontal {
   background: var(--color-gray-light);
   width: 5px !important;
   border-left: var(--border-standard);
   border-radius: 0;
   padding-right: 0.3rem;
   border-right: var(--border-standard);
}

/*打开的页面的图标的样式*/
#center-pane .title-row .note-icon-widget button {
   display: flex;
   color: #9e49bb;

   margin: 0;
}
/*这里是一级标题部分*/
#center-pane .title-row .note-title-widget input.note-title {
   color: var(--color-blue-dark) !important;
}

.note-title-widget input.note-title.protected {
    text-shadow: 0px 0px 0px var(--muted-text-color);
}

input.note-title {
   font-family: var(--detail-font-family) !important;
   font-weight: bold;
}

.bx-dock-right::before {
   vertical-align: middle;
}


button.ck.ck-block-toolbar-button {
   background-color: rgba(255, 255, 255, 0);
}


html {
   --color-blue-light: #59AC80;
   --color-blue-light-alpha: #ABD49D;
   /*   当前活动标签页的背景色，原值#4682B470   */
   --color-gray: #d6d6d6;
   --color-gray-light: #59AC80;
   /*  至少这里是非活动标签、两侧分隔栏的颜色   */
   --accented-background-color: #B2E8C6;
   /*  这个才是卡片背景颜色   */
   --more-accented-background-color: #8AE097;
   /*  这个是鼠标悬浮在卡片上时的背景颜色 */
   --left-pane-background-color: #FDF5EA;
   /*   这个才是正儿八经的文件树的背景色   */
   --color-gray-light-text: #000000;
   /*  至少是非活动标签的字的颜色  */
   --color-gray-light-alpha: rgba(199, 199, 199, 0.2);
   --border-standard: 1px solid var(--color-gray);
   --color-blue-dark: #296e42;
   --link-color: #007BFF !important;
   --menu-background-color: #F3F9F1;
   /* 快速搜索结果的卡片的背景色 */
}

div#root-widget div#rest-pane div.tab-row-widget div.note-new-tab {
   color: var(--color-gray-dark);
   background-color: var(--color-gray-light-alpha);
}

div#rest-pane>div.component {
   height: 30px !important;
   margin-bottom: 1px !important;
}

.note-new-tab {
   width: 30px !important;
   height: 30px !important;
   font-size: 19px !important;
}

.tab-row-widget .note-tab .note-tab-close span {
   font-size: 23px !important;
}

div#root-widget div#rest-pane div.tab-row-widget div.note-new-tab:hover {
   color: var(--color-blue-light);
   background-color: var(--color-blue-light-alpha);
}

div#rest-pane div.tab-row-widget div.tab-row-widget-container div.note-tab div.note-tab-wrapper {
   background-color: var(--color-gray-light);
   color: var(--color-gray-light-text);
   padding: 3px 5px 1px 5px !important;
   height: 30px !important;
}

div#rest-pane div.tab-row-widget div.tab-row-widget-container div.note-tab div.note-tab-wrapper:hover {
   background-color: var(--color-blue-light-alpha);
}

div#rest-pane div.tab-row-widget div.tab-row-widget-container div.note-tab div.note-tab-wrapper>div:hover {
   background: none;
}

/*当前选中标签的字的颜色 */
div#rest-pane div.tab-row-widget div.tab-row-widget-container div.note-tab[active] .note-tab-wrapper {
   color: #146e20;
   background-color: var(--color-blue-light-alpha);
}

div#rest-pane div.tab-row-widget div.tab-row-widget-container div.note-tab[active] .note-tab-wrapper div.note-tab-title::before {
   content: "\203B ";
   margin-right: 5px;
}



/* 左侧面板背景图片，由于整个笔记的背景都换了，这个优先级不够高，故注释掉 */
/*#left-pane.component {
   background-image: url("/custom/background.png");
} 
*/
#线条
li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n) {
   border-left: 4px solid#F9950A !important;
   border-top-left-radius: 10px !important;
   border-bottom-left-radius: 10px !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+1) {
    border-left: 4px solid #30db5b !important;
   border-top-left-radius: 10px !important;
   border-bottom-left-radius: 10px !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+2) {
   border-left: 4px solid #409cff;
   border-top-left-radius: 10px !important;
   border-bottom-left-radius: 10px !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+3) {
   border-left: 4px solid #ff6482;
   border-top-left-radius: 10px !important;
   border-bottom-left-radius: 10px !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+4) {
   border-left: 4px solid #ffd426;
   border-top-left-radius: 10px !important;
   border-bottom-left-radius: 10px !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+5) {
   border-left: 4px solid #d48fff;
   border-top-left-radius: 10px !important;
   border-bottom-left-radius: 10px !important;
}

#li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n):hover {
   background-color: #f4a6a601 !important;
}

#li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+1):hover {
   --border-background-color:  #84D5BD !important;
}

#li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+2):hover {
   background-color: #719ACE !important;
}

#li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+3):hover {
   background-color: #F3D48C !important;
}

#li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+4):hover {
   background-color: #FEB4AD !important;
}

#li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+5):hover {
   background-color: #A5ACE2 !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n)>span.fancytree-node:hover {
   background-color: #F8B811 !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+1)>span.fancytree-node:hover {
   background-color: #8AE097 !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+2)>span.fancytree-node:hover {
   background-color: #A6C6FD !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+3)>span.fancytree-node:hover {
   background-color: #FEB4AD !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+4)>span.fancytree-node:hover {
   background-color: #F7DB8A !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+5)>span.fancytree-node:hover {
   background-color: #C5BCF0 !important;
}


.fancytree-node {
   padding-top: 0px !important;
   padding-bottom: 0px !important;
}

span.fancytree-node.fancytree-active {

   border-radius: 0px !important;
   border: 0px !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n)>span.fancytree-node.fancytree-active {
   background-color: #F8B811 !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+1)>span.fancytree-node.fancytree-active {
   background-color: #8AE097 !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+2)>span.fancytree-node.fancytree-active {
   background-color: #A6C6FD !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+3)>span.fancytree-node.fancytree-active {
   background-color: #FEB4AD !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+4)>span.fancytree-node.fancytree-active {
   background-color: #F7DB8A !important;
}

li.fancytree-lastsib ul li[role='treeitem']:nth-of-type(6n+5)>span.fancytree-node.fancytree-active {
   background-color: #C5BCF0 !important;
}
span.button-widget.icon-action.bx.component.bx-history,
.ribbon-button-container .icon-action {
   padding-top: 5px !important;
}

span.fancytree-node:hover {
   border: 0px !important;
}

span.fancytree-node {
   border: 0px !important;
}

.title-bar-buttons div button.icon-action {
   font-size: 80% !important;
}
/*右侧目录*/
/*如果不带!important优先级别较低，所以不会使用*/
.toc ol {
    padding-left: 25px !important;
}

div.note-detail p {
   font-size: 1.25rem;
   /* 云遥改动处，加入这一行，修改字体大小  */
   margin-top: 0.1rem !important;
   margin-bottom: 0.5rem !important;
   line-height: 2.25rem;
   /*  行高，，减去1.25的字体大小，行距为 1  */
   text-indent: 0em;
   /*  云遥改动处，2em修改为0em，去除缩进2个字符  */
   text-align: justify;
   text-justify: distribute;
}

dl,
ol,
ul {
   padding-left: 1em;
}
/*列表的字体大小*/
div.note-detail ul>li,
ol>li {
   font-size: 1.3rem;
   /* 云遥改动处，修改了列表项的字体大小 */
   text-align: justify;
   text-justify: distribute;
}

blockquote>p {
   text-indent: 0em;
   /* 引用块去除缩进，原作者貌似在0.58.4的主题里就是0em，但上一个版本是2em */
}

p>span.ck-math-tex {
   text-indent: 0em;
}


.note-detail {
   line-height: 2.25rem;
}


.ck-content p>span.image-inline {
   vertical-align: middle;

}


.ck-content figure.image {
   margin-top: 0.2rem;
   margin-bottom: 0.2rem;
}

div.note-detail.component span.image-inline {
   border: 1px dashed rgb(200, 200, 200);
}

div.note-detail.component figure.image {
   border: 1px dashed rgb(200, 200, 200);
}

::selection {
   background-color: rgba(70, 130, 180, 0.7) !important;

}

.note-properties-widget {
   padding: 0px !important;
}

.note-icon-widget.dropdown.component {
   padding-top: 1.5px !important;
}

.basic-properties-widget>* {
   margin-top: 0px !important;
}

div.attribute-list {
   margin-top: 0px !important;
}

.basic-properties-widget {
   padding: 0px 12px 0px 12px !important;
}

.component {
   padding-top: 0px !important;
   padding-bottom: 0px !important;
}

.inherited-attributes-container {
   padding: 0px 12px 0px 12px !important;
}

.add-new-attribute-button,
.save-attributes-button {
   bottom: 0px !important;
}


::-webkit-scrollbar-thumb {
   border-radius: 5px !important;
   background: rgba(0, 0, 0, 0.2) !important;
}

::-webkit-scrollbar {
   height: 12px;
}


/* 这里才是卡片背景颜色*/
div#center-pane .note-book-card {
   border: 1px solid rgba(128, 128, 128, 0.5) !important;
}




#center-pane div.note-detail-editable-text div.note-detail-editable-text-editor.ck.ck-content pre,
#center-pane .CodeMirror pre code {
   color: var(--color-blue-dark) !important;
   padding: 0.2em;
   margin: 0.5rem auto 0.5rem;
   background-color: var(--color-gray-light);
   border: 1px dotted var(--color-gray);
}

.ck.ck-editor__editable pre[data-language]::after {
   background: rgba(10, 10, 10, 0.1);
}
/*编辑模式下代码背景色*/
.ck.ck-editor__editable .ck-code_selected {
background-color: hsla(0,0%,51%,36%) !important;
}
/*浏览模式下代码背景色*/
.ck-content code {
background-color: hsla(0,0%,51%,36%) ;/*这里如果加上了"!important" 那么代码块中也会受到影响，所以去掉后就正常了*/
}


span.katex * {
   font-family: KaTeX_Main !important;
   font: KaTeX_Main, Times New Roman, serif !important;
}

.katex-display {
   margin: 0.1rem 0;
}


/*后代选择器，选中.ck-content下的引用块元素设置样式*/
.ck-content blockquote {
   font-style: initial !important;
   color: #2C3E50 !important;
   border-left: 5px solid #D6DBDF !important;
   /* 云遥改动处 */
   /* 原值   background: none repeat scroll 0 0 rgba(102, 128, 153, .05) !important; */
   /*引用块颜色，这里要使用不透明的，否则如果使用rgba的话，会和底色叠加，不好估计是什么颜色*/
   background: none repeat scroll 0 0 rgb(169, 299, 178) !important;
   padding: 2px 1px 3px !important;
   margin: 0.2rem 0 0 0 !important;
}

/*子元素选择器，选中引用块里的p元素，也就是文字元素，设置样式*/
blockquote>p {
   margin-bottom: 0 !important;
   text-indent: 0em !important;
   /* 云遥改动处，引用块文字去除缩进，原值1.7em，改为0*/
}

dl,
ol,
ul {
   margin-bottom: 0.1rem !important;
}



.ck-content .table {
   margin-top: 0.1rem;
   margin-bottom: 0.1rem;
}

/*这里注释掉是因为暂时不知道有什么用，好像也没啥用*/
/* a[href^="#root"] {
   
} */

html body.mobile.heading-style-plain div#root-widget.component div#launcher-pane.component div#launcher-container.component div.spacer.component {
   background-color: var(--color-blue-light);
   /*不知道是干啥的*/
   width: 44px !important;
}

/*云遥改动处，列表项第一级显示实心圆而不是空心圆  */
.ck-content ul {
   list-style-type: disc;
   line-height: 2.25rem;
   /*行高*/
}

/*不知道是版本问题还是什么，这部分是右侧目录的颜色*/
ol li {
   /*一级目录*/
   color: #000000;
   line-height: 2.25rem;
   /*行高 */
}

ol ol>li {
   /*二级目录*/
   color: #0a84ff;
   line-height: 2.25rem;
}

ol ol>ol>li {
   /*三级目录*/
   color: #ff2d55;
   line-height: 2.25rem;
}

ol ol>ol>ol>li {
   /*四级目录*/
   color: #e6952f;
   line-height: 2.25rem;
}

ol ol>ol>ol>ol>li {
   /*五级目录*/
   color: #af52de;
   line-height: 2.25rem;
}

/*这部分才是有序列表的颜色*/
ol>li {
   /*有序列表，第一层*0075cb/
   color: #F9C40A;
   line-height: 2.25rem;
   /*行高 */
}

ol>li>ol>li {
   /*有序列表，第二层*/
   color: #0094c1;
   line-height: 2.25rem;
}

ol>li>ol>li>ol>li {
   /*有序列表，第三层*/
   color: #3c32bd;
   line-height: 2.25rem;
}

ol>li>ol>li>ol>li>ol>li {
   /*有序列表，第四层*/
   color: #bb4ead;
   line-height: 2.25rem;
}

ol>li>ol>li>ol>li>ol>li>ol>li {
   /*有序列表，第五层*/
   color: #ff9354;
   line-height: 2.25rem;
}

/*编辑模式下有序列表边框有限制，导致10，这种只会显示0，所以特意设置下边距*/
.ck.ck-editor__editable_inline {
    padding-left: 17px;
}

/*浏览模式下右边控制有点冲突，有些会被挡住强迫症很难受所以特意设置下边距*/
.note-detail-readonly-text {
    padding-right: 6px;
}

/*这个就是无序列表项、有序列表项前面的那个圈圈或者数字标识的颜色*/
::marker {
   color: #4682B4;
}

/*编辑模式下，代码块背景颜色*/
#center-pane div.note-detail-editable-text div.note-detail-editable-text-editor.ck.ck-content pre,
#center-pane .CodeMirror pre code {
    color: var(--color-blue-dark) !important;
    padding: 0.2em;
    margin: 0.5rem auto 0.5rem;
    background-color: #FFFAFA;
    /*这部分是控制代码块边缘的阴影的，使代码块看起来更像一个单独的块*/
    border: 1px solid #a5a5a5;
}

/*只读模式下，代码块背景颜色 */
.ck-content pre {
   background: #FFFAFA;
   border: 1px solid #a5a5a5;
   border-radius: 2 px;
   color: #353535;
   direction: ltr;
   font-style: normal;
   min-width: 200 px;
   padding: 1 em;
   tab-size: 4;
   text-align: left;
   white-space: pre-wrap;
}

/*
#root-widget.component {
   background-image: url("/custom/background.png");
   background-size: 100% 100%;
}
*/

.ck .ck-link_selected {
   background-color: #F2F2F2;
}

/*列表的标签数字*/
::marker {
    color: #886bbf;
}