diff --git a/theme-arc-blue.css b/theme-arc-blue.css
index 0d62a25..bc688be 100644
--- a/theme-arc-blue.css
+++ b/theme-arc-blue.css
@@ -925,6 +925,13 @@
   .CodeMirror .CodeMirror-code .cm-tag {
       color: #dedede;
   }
+  .CodeMirror-selected {
+      background: #333 !important;
+  }
+  .CodeMirror-cursor {
+      width: 2px;
+      background: #0f0;
+  }
   .cm-s-default .cm-meta,
   .cm-s-default .cm-qualifier {
       color: #a8cfe7;
@@ -1005,3 +1012,10 @@
   .heatmap-color-5 {
       background-color: #3d9bdf;
   }
+  .editor-toolbar a {
+      color: #71abe7 !important;
+  }
+  .markdown:not(code) code, .markdown:not(code) tt {
+      font-size: 1em;
+      background-color: #0c112d;
+  }