Adding a light color theme "slambook". (monkeytypegame#3982) prathammpurohit

* Create pale_page.css

* Update pale_page.css

Added a pale yellow page-like interface. Added newer error colours as well.

* Update _list.json

Added theme "pale_page".

* Update pale_page.css

Added a new colour theme.

* Update _list.json

Added a new theme "pale_page".

* Delete pale_page.css

* Create slambook.css

Added a new theme "slambook".

* Update _list.json

Added a new theme "slambook".

* Update slambook.css

fixed color scheme

* Update _list.json

* Update slambook.css

Updated theme

Author: plutocrate

frontend/static/themes/_list.json

@@ -1139,5 +1139,12 @@
     "mainColor": "#8fbcbb",
     "subColor": "#6a7791",
     "textColor": "#8fbcbb"
-  }
-]
+  },
+  {
+    "name": "slambook",
+    "bgColor": "#FFFDDE",
+    "mainColor": "#13005A",
+    "subColor": "#1c82adc4",
+    "textColor": "#125d98"
+}
+]

frontend/static/themes/slambook.css

@@ -0,0 +1,12 @@
+:root {
+    --bg-color: #FFFDDE;
+    --main-color: #03001c;
+    --caret-color: #367E18;
+    --sub-color: #1c82adc4;
+    --sub-alt-color: #C6DCE4;
+    --text-color: #13005A;
+    --error-color: #F900BF;
+    --error-extra-color: #CE1212;
+    --colorful-error-color: #CE1212;
+    --colorful-error-extra-color: #3EC70B;
+  }