diff --git a/src/images/alchi.pallas-pattern.square-F1L-M2L-F4L-M3L.svg b/src/images/alchi.pallas-pattern.square-F1L-M2L-F4L-M3L.svg
new file mode 100644
index 0000000..3a217cd
--- /dev/null
+++ b/src/images/alchi.pallas-pattern.square-F1L-M2L-F4L-M3L.svg
@@ -0,0 +1,76 @@
+<svg title="alchi.pallas-pattern.square-F1L-M2L-F4L-M3L"
+  viewBox="0 0 400 400"
+  xmlns="http://www.w3.org/2000/svg"
+  xmlns:xlink="http://www.w3.org/1999/xlink"
+  >
+  <!-- based on alchi.pallas-pattern.svg -->
+  <defs>
+    <style type="text/css">
+      svg { --fg: black; --bg: white; } /* light mode */
+
+      .fig1 .stroke {
+        stroke-width: 2;
+        stroke: black; /* fallback when css variables are not supported */
+        stroke: var(--fg);
+      }
+
+      .nofill {
+        fill: none;
+      }
+
+      .fillbg {
+        fill: white;
+        fill: var(--bg);
+      }
+
+      .fillfg {
+        fill: black;
+        fill: var(--fg);
+      }
+    </style>
+  </defs>
+
+  <g class="fig1">
+
+
+    <g title="Pattern lines" stroke-width="2" fill="none" stroke="black" class="stroke nofill">
+
+
+
+      <g title="simple pattern">
+        <g title="single lines orthogonal: single lines outside squares">
+          <g>
+            <title>top left</title>
+            <!--
+            <path title="right" d="M 300 160 L 300 240"/>
+            <path title="left" d="M 100 160 L 100 240"/>
+            -->
+            <path title="right" d="M 342 142 L 400 200 L 342 258"/>
+            <path title="left" d="M 58 142 L 0 200 L 58 258"/>
+            <path title="bottom" d="M 160 300 L 240 300"/>
+            <path title="top" d="M 160 100 L 240 100"/>
+          </g>
+        </g>
+      </g>
+
+
+    </g>
+
+    <g title="circles and text">
+      <g title="circles" stroke-width="2" fill="none" stroke="black" class="stroke nofill">
+        <title>Circles</title>
+        <circle cx="100" cy="100" r="60"/>
+        <circle cx="300" cy="100" r="60"/>
+        <circle cx="100" cy="300" r="60"/>
+        <circle cx="300" cy="300" r="60"/>
+      </g>
+      <g title="text" dominant-baseline="middle" text-anchor="middle" font-family="sans" font-size="40" class="fillfg">
+        <text fill="black" x="100" y="100">F1L</text>
+        <text fill="black" x="300" y="100">M2L</text>
+        <text fill="black" x="100" y="300">M3L</text>
+        <text fill="black" x="300" y="300">F4L</text>
+      </g>
+    </g>
+
+  </g>
+</svg>