diff --git a/artwork/favicon-closed.svg b/artwork/favicon-closed.svg
new file mode 100644
index 0000000..7033a3e
--- /dev/null
+++ b/artwork/favicon-closed.svg
@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<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="10mm"
+   height="10mm"
+   viewBox="0 0 10 10"
+   version="1.1"
+   id="svg4549"
+   inkscape:version="0.92.4 5da689c313, 2019-01-14"
+   sodipodi:docname="favicon-closed.svg">
+  <defs
+     id="defs4543" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="7.9195959"
+     inkscape:cx="26.7427"
+     inkscape:cy="6.2416383"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:window-width="1680"
+     inkscape:window-height="1022"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata4546">
+    <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>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-287)">
+    <path
+       sodipodi:type="star"
+       style="opacity:1;fill:#ff6666;fill-opacity:1;stroke:#ffffff;stroke-width:0.25292122;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       id="path5096"
+       sodipodi:sides="8"
+       sodipodi:cx="4.8680987"
+       sodipodi:cy="291.94043"
+       sodipodi:r1="4.5414524"
+       sodipodi:r2="4.1957536"
+       sodipodi:arg1="0.77983236"
+       sodipodi:arg2="1.1725314"
+       inkscape:flatsided="true"
+       inkscape:rounded="0"
+       inkscape:randomized="0"
+       d="m 8.0972141,295.1338 -3.2038387,1.34801 -3.2186454,-1.31226 -1.34801333,-3.20384 1.31226673,-3.21865 3.2038386,-1.34801 3.2186455,1.31226 1.3480133,3.20384 z"
+       transform="matrix(1.0592515,-0.43875632,0.43875632,1.0592515,-128.24725,-15.102429)" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-weight:normal;font-size:3.66031456px;line-height:1.25;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.09150787"
+       x="0.93129587"
+       y="293.3342"
+       id="text5100"><tspan
+         sodipodi:role="line"
+         id="tspan5098"
+         x="0.93129587"
+         y="293.3342"
+         style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-family:sans-serif;-inkscape-font-specification:'sans-serif Bold';fill:#ffffff;stroke-width:0.09150787">NEE</tspan></text>
+  </g>
+</svg>
diff --git a/artwork/favicon-open.svg b/artwork/favicon-open.svg
new file mode 100644
index 0000000..51956b9
--- /dev/null
+++ b/artwork/favicon-open.svg
@@ -0,0 +1,63 @@
+<?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="10mm"
+   height="10mm"
+   viewBox="0 0 10 10"
+   version="1.1"
+   id="svg8"
+   inkscape:version="0.92.4 5da689c313, 2019-01-14"
+   sodipodi:docname="favicon-open.svg">
+  <metadata
+     id="metadata5">
+    <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>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-287)">
+    <path
+       sodipodi:type="star"
+       id="path3713"
+       sodipodi:sides="5"
+       sodipodi:cx="5.087266"
+       sodipodi:cy="292.22028"
+       sodipodi:r1="5.0108638"
+       sodipodi:r2="3.3405776"
+       sodipodi:arg1="0.8635795"
+       sodipodi:arg2="1.491898"
+       inkscape:flatsided="false"
+       inkscape:rounded="0"
+       inkscape:randomized="0"
+       d="m 8.3429274,296.0294 -2.9923688,-0.47894 -2.87993,0.94322 -0.4691954,-2.99391 -1.78699947,-2.44751 2.70239007,-1.3714 1.7755036,-2.45586 2.1393643,2.14634 2.884321,0.9297 -1.3801902,2.69791 z"
+       inkscape:transform-center-x="0.12204295"
+       inkscape:transform-center-y="-0.36093347"
+       style="fill:#4fbc32;fill-opacity:1;stroke:#008800;stroke-width:0.25783524;stroke-opacity:1" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-weight:normal;font-size:4.07491302px;line-height:1.25;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.10187282"
+       x="2.8319168"
+       y="293.43652"
+       id="text4522"><tspan
+         sodipodi:role="line"
+         id="tspan4520"
+         x="2.8319168"
+         y="293.43652"
+         style="font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-family:'DejaVu Sans';-inkscape-font-specification:'DejaVu Sans';stroke-width:0.10187282">Ja!</tspan></text>
+  </g>
+</svg>
diff --git a/public/favicons/closed-16x16.png b/public/favicons/closed-16x16.png
new file mode 100644
index 0000000..8468735
Binary files /dev/null and b/public/favicons/closed-16x16.png differ
diff --git a/public/favicons/closed-32x32.png b/public/favicons/closed-32x32.png
new file mode 100644
index 0000000..5ad9afd
Binary files /dev/null and b/public/favicons/closed-32x32.png differ
diff --git a/public/favicons/closed-96x96.png b/public/favicons/closed-96x96.png
new file mode 100644
index 0000000..90ae5cb
Binary files /dev/null and b/public/favicons/closed-96x96.png differ
diff --git a/public/favicons/open-16x16.png b/public/favicons/open-16x16.png
new file mode 100644
index 0000000..1281049
Binary files /dev/null and b/public/favicons/open-16x16.png differ
diff --git a/public/favicons/open-32x32.png b/public/favicons/open-32x32.png
new file mode 100644
index 0000000..bf39414
Binary files /dev/null and b/public/favicons/open-32x32.png differ
diff --git a/public/favicons/open-96x96.png b/public/favicons/open-96x96.png
new file mode 100644
index 0000000..476f461
Binary files /dev/null and b/public/favicons/open-96x96.png differ
diff --git a/scripts/generate-favicons.sh b/scripts/generate-favicons.sh
new file mode 100755
index 0000000..3a2b9fe
--- /dev/null
+++ b/scripts/generate-favicons.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+
+if [[ $# -lt 2 ]]; then
+	echo "Usage: $0 SOURCE PREFIX" >&2
+	exit 1
+fi
+
+SOURCE=$1
+PREFIX=$2
+SUFFIX=.png
+SIZES=(16x16 32x32 96x96)
+
+for size in "${SIZES[@]}"; do
+	target="${PREFIX}${size}${SUFFIX}"
+	convert -background none "$SOURCE" -resize "$size" "$target"
+	optipng "$target"
+done