update links and window.code aspect

assets/css/app.scss

@@ -471,8 +471,9 @@ pre[class*="language-"] {
     color: #fff;
   }
 
-  p a, ul a {
-    border-bottom: 2px dotted $color-blue2;
+  p a, ul:not(.btn-group) a {
+    background: url('../images/link.svg') bottom left repeat-x;
+    padding-bottom: 5px;
   }
 
   .pager a {
@@ -1292,7 +1293,7 @@ $links: (
     }
 
     p a, ul a {
-      border-bottom: 2px dotted $color-blue2;
+      /* border-bottom: 2px dotted $color-blue2; */
     }
 
     blockquote {

assets/images/window.svg

@@ -1 +1,69 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="66.858" height="19.249" viewBox="0 0 17.689 5.093"><g stroke="#fff"><path fill="none" stroke-linecap="square" stroke-miterlimit="3.7" stroke-width=".529" d="M6.106 1.505h2.072v2.159H6.106z" color="#000" overflow="visible" paint-order="markers fill stroke"/><path fill="#f9f9f9" fill-rule="evenodd" stroke-width=".529" d="M.217 2.584h3.261"/><g fill="#f9f9f9" fill-rule="evenodd" stroke-width=".344"><path d="M29.585 112.1l1.532 1.532M29.585 113.632l1.532-1.531" transform="matrix(1.50595 0 0 1.5692 -33.57 -174.527)"/></g></g></svg>
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="66.858"
+   height="19.249"
+   viewBox="0 0 17.689 5.093"
+   version="1.1"
+   id="svg1499"
+   sodipodi:docname="window.svg"
+   inkscape:version="1.0.2 (e86c870879, 2021-01-15)">
+  <metadata
+     id="metadata1505">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs1503" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1918"
+     inkscape:window-height="1021"
+     id="namedview1501"
+     showgrid="false"
+     inkscape:zoom="2.8474527"
+     inkscape:cx="157.46451"
+     inkscape:cy="-60.004475"
+     inkscape:window-x="0"
+     inkscape:window-y="38"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg1499" />
+  <circle
+     style="color:#000000;overflow:visible;opacity:1;fill:#f45252;fill-opacity:1;stroke:none;stroke-width:0.264585;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1;paint-order:stroke markers fill;stop-color:#000000"
+     id="path1550"
+     cx="12.084904"
+     cy="2.5465"
+     r="1.5139148" />
+  <circle
+     style="color:#000000;overflow:visible;fill:#f4c752;fill-opacity:1;stroke:none;stroke-width:0.264585;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1;paint-order:stroke markers fill;stop-color:#000000"
+     id="path1550-7"
+     cx="7.0683937"
+     cy="2.5465"
+     r="1.5139148" />
+  <circle
+     style="color:#000000;overflow:visible;fill:#b2f452;fill-opacity:1;stroke:none;stroke-width:0.264585;stroke-linecap:round;stroke-linejoin:round;stroke-opacity:1;paint-order:stroke markers fill;stop-color:#000000"
+     id="path1550-7-8"
+     cx="2.0518849"
+     cy="2.5465"
+     r="1.5139148" />
+</svg>