Add dark theme

assets/css/darktheme.css

@@ -0,0 +1,26 @@
+a:hover,
+a:active {
+  color: #46aaf6;
+}
+
+a {
+  color: #f0f0f0;
+  text-decoration: none;
+}
+
+body {
+  background-color: #101010;
+  color: #f0f0f0;
+}
+
+.pure-form legend {
+  color: #f0f0f0;
+}
+
+.pure-menu-heading {
+  color: #f0f0f0;
+}
+
+.pure-form > fieldset > input {
+  color: #101010;
+}

assets/css/default.css

@@ -1,13 +1,3 @@
-a {
-  color: #333;
-  text-decoration: none;
-}
-
-a:hover,
-a:active {
-  color: #167ac6;
-}
-
 .h-box {
   padding-left: 1em;
   padding-right: 1em;
@@ -16,4 +6,4 @@ a:active {
 .v-box {
   padding-top: 1em;
   padding-bottom: 1em;
-}
+}

assets/css/lighttheme.css

@@ -0,0 +1,9 @@
+a:hover,
+a:active {
+  color: #167ac6;
+}
+
+a {
+  color: #303030;
+  text-decoration: none;
+}