修改默认主题色为暗色

Author: chenxianhuii

examples/css/header.css

@@ -153,6 +153,7 @@
   left: 20px !important;
   border: none;
   border-radius: 4px !important;
+  background-color: var(--dropdown-background-color);
   box-shadow: 0px 6px 18px 0px var(--dropdown-shadow-color);
 }
 .navbar-rightbar .dropdown .dropdown-menu{

examples/js/theme/theme.js

@@ -52,7 +52,7 @@ document.addEventListener("DOMContentLoaded", function() {
 });
 
 function initSkin() {
-  var skin = utils.getCookie('theme') || 'light';
+  var skin = utils.getCookie('theme') || 'dark';
   var bodyElem = document.querySelector('body');
   bodyElem.classList.remove("light", "dark");
   bodyElem.classList.add(skin);

examples/template/header.html

@@ -7,7 +7,7 @@
         <div class="navbar-header">
             <div class="navbar-title">
                 <a class="navbar-brand" target="_self" href="../../web/index.html">
-                    <img class="project-logo" src="../img/svg/logo.svg" style="visibility: visible;"
+                    <img class="project-logo" src="../img/svg/logo-dark.svg" style="visibility: visible;"
                         id="logo">
                 </a>
             </div>
@@ -25,7 +25,7 @@
               <li class="dropdown">
                   <a class="dropdown-toggle" data-toggle="dropdown" href="#"> 
                       <span  data-i18n="nav.language._name">中文</span>
-                    <img src="../img/svg/arrowDown.svg" alt="">
+                    <img src="../img/arrowDown-dark.png" alt="" style="display: inline-block;width: 10px;height: 10px;">
                   </a>
                   <ul class="dropdown-menu">
                       <li><a class="lang-option text-center" data-lang="zh-CN">中文</a></li>