diff --git a/overview.svg b/overview.svg
index 3f2b185..d817901 100644
--- a/overview.svg
+++ b/overview.svg
@@ -5,14 +5,38 @@ 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"
-width="210mm"
-height="297mm"
-viewBox="0 0 210 297"
+width="1000"
+height="1000"
 version="1.1">
+<g transform="translate(400, 400)">
+<rect x="0" y="0" width="200" height="200" style="fill: #cccccc" />
 <circle
-style="fill:#ff0000;fill-rule:evenodd;stroke-width:0.264583"
+style="fill:#222222;fill-rule:evenodd;stroke-width:0.264583"
 id="path10"
-cx="107.75041"
-cy="155.52887"
-r="29.119368" />
+cx="100"
+cy="100"
+r="20" />
+<circle
+style="fill: none; stroke: #555555; stroke-width: 20"
+cx="100"
+cy="100"
+r="40" />
+</g>
+<circle
+style="fill: none; stroke: #999999; stroke-width: 10"
+cx="500"
+cy="500"
+r="490" />
+<line
+x1="465" y1="535"
+x2="150" y2="850"
+style="stroke-width: 5; stroke: #999999" />
+<line
+x1="535" y1="465"
+x2="850" y2="150"
+style="stroke-width: 5; stroke: #999999" />
+<text x="40" y="70">Not to scale</text>
+<text x="820" y="70">V=1365.0141 km/s</text>
+<text x="820" y="85">Ω=2.6069 rpm</text>
+<text x="820" y="100">A=38000g</text>
 </svg>