diff --git a/assets/css/site.css b/assets/css/site.css
index bed9223..76e5b6e 100644
--- a/assets/css/site.css
+++ b/assets/css/site.css
@@ -8,10 +8,10 @@
     --primary: #00b0cd;
     --secondary: #80c0cc;
 
-    --yellow: #ECAF21;
-    --yellow-body: #E29900;
+    --yellow: #ecaf21;
+    --yellow-txt: #e29900;
     --red: #eb452b;
-    --red-body: #de342a;
+    --red-txt: #de342a;
     --blue: #0070C0;
     --black: #272727;
     --green: #03A653;
@@ -657,10 +657,10 @@ nav {
 .problem
 {
     &:first-of-type mark {
-        --mark-color: var(--yellow-body);
+        --mark-color: var(--yellow-txt);
     }
     &:nth-of-type(2) mark {
-        --mark-color: var(--red-body);
+        --mark-color: var(--red-txt);
     }
     &:nth-of-type(3) mark {
         --mark-color: var(--green);
@@ -776,11 +776,11 @@ mark {
     padding-bottom: 0.25rem;
 
     &[color="yellow"] {
-        --mark-color: var(--yellow-body);
+        --mark-color: var(--yellow-txt);
     }
 
     &[color="red"] {
-        --mark-color: var(--red-body);
+        --mark-color: var(--red-txt);
     }
 
     &[color="green"] {
@@ -802,10 +802,10 @@ span[color="blue"] {
     color: var(--blue);
 }
 span[color="red"] {
-    color: var(--red-body);
+    color: var(--red-txt);
 }
 span[color="yellow"] {
-    color: var(--yellow-body);
+    color: var(--yellow-txt);
 }
 span[color="green"] {
     color: var(--green);
diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index ff38d36..2e89171 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -19,6 +19,16 @@
       {{ end }}
     </title>
     <meta name="description" content="{{ $description }}">
+    <link rel="icon" href="{{ "/favicon.svg" | relURL }}" type="image/svg+xml">
+    {{ if fileExists "static/favicon-32.png" }}
+    <link rel="icon" href="{{ "/favicon-32.png" | relURL }}" sizes="32x32" type="image/png">
+    {{ end }}
+    {{ if fileExists "static/apple-touch-icon.png" }}
+    <link rel="apple-touch-icon" href="{{ "/apple-touch-icon.png" | relURL }}">
+    {{ end }}
+    {{ if and (fileExists "static/android-chrome-192x192.png") (fileExists "static/android-chrome-512x512.png") }}
+    <link rel="manifest" href="{{ "/site.webmanifest" | relURL }}">
+    {{ end }}
     {{ with resources.Get "css/site.css" | fingerprint }}
       <link rel="stylesheet" href="{{ .RelPermalink }}">
     {{ end }}
@@ -91,4 +101,4 @@
       {{ partial "footer.html" . }}
     </footer>
   </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/static/favicon-32.png b/static/favicon-32.png
new file mode 100644
index 0000000..40d6327
Binary files /dev/null and b/static/favicon-32.png differ
diff --git a/static/favicon.svg b/static/favicon.svg
new file mode 100644
index 0000000..0eb1c6a
--- /dev/null
+++ b/static/favicon.svg
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg width="100%" height="100%" viewBox="0 0 24 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;"><path d="M6.434,3.039l5.434,13.043l-10.869,0l5.434,-13.043Z" style="fill:#eb452b;"/><circle cx="17.566" cy="10.647" r="5.434" style="fill:#0070c0;"/><circle cx="18.142" cy="19.521" r="3.44" style="fill:#ecaf21;"/></svg>
\ No newline at end of file
diff --git a/static/img/nyc.ios.svg b/static/img/nyc.ios.svg
deleted file mode 100644
index 8faa3da..0000000
--- a/static/img/nyc.ios.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg width="100%" height="100%" viewBox="0 0 148 240" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;"><rect x="6.693" y="167.817" width="86.4" height="72" style="fill:#fcb70d;"/><rect x="98.268" y="129.523" width="49.732" height="110.477" style="fill:#e62a1b;"/><rect x="98.268" y="96.682" width="49.732" height="32.84" style="fill:#1a52a3;"/><rect x="98.268" y="53.482" width="43.2" height="43.2" style="fill:#272727;"/><rect x="142.859" y="53.482" width="1.448" height="43.2" style="fill:#272727;"/><rect x="145.739" y="53.482" width="1.448" height="43.2" style="fill:#272727;"/><rect x="19.173" y="152.457" width="61.44" height="15.36" style="fill:#1a52a3;"/><rect x="47.985" y="138.83" width="3.816" height="13.627" style="fill:#272727;"/></svg>
\ No newline at end of file