diff --git a/icon/icon-128.png b/icon/icon-128.png
new file mode 100644
index 0000000..cf4509c
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diff --git a/icon/icon-512.png b/icon/icon-512.png
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diff --git a/icon/icon-512.svg b/icon/icon-512.svg
new file mode 100644
index 0000000..fea3624
--- /dev/null
+++ b/icon/icon-512.svg
@@ -0,0 +1,31 @@
+<svg viewBox="0 0 512 512" version="1.1" xmlns="http://www.w3.org/2000/svg">
+  <style>
+    .cross {
+      fill: #939BAE;
+    }
+    .circle {
+      fill: #252931;
+    }
+
+    @media (prefers-color-scheme: light) {
+      .cross {
+        fill: #939BAE;
+      }
+      .circle {
+        fill: #252931;
+      }
+    }
+
+    @media (prefers-color-scheme: dark) {
+      .cross {
+        fill: #252931;
+      }
+      .circle {
+        fill: #939BAE;
+      }
+    }
+  </style>
+  <circle cx="256" cy="256" r="256" class="circle"/>
+  <path d="M374 224H138C132.477 224 128 228.477 128 234V278C128 283.523 132.477 288 138 288H374C379.523 288 384 283.523 384 278V234C384 228.477 379.523 224 374 224Z" class="cross"/>
+  <path d="M278 128H234C228.477 128 224 132.477 224 138V374C224 379.523 228.477 384 234 384H278C283.523 384 288 379.523 288 374V138C288 132.477 283.523 128 278 128Z" class="cross"/>
+</svg>