diff --git a/shell/plugins/model-usage/Widget.qml b/shell/plugins/model-usage/Widget.qml
index cc4ff7a8..497f4e3b 100644
--- a/shell/plugins/model-usage/Widget.qml
+++ b/shell/plugins/model-usage/Widget.qml
@@ -163,10 +163,28 @@ BarWidget {
     usageMain.refreshAll(true)
   }
 
+  function colorChannelLuminance(value) {
+    var channel = Number(value)
+    if (!isFinite(channel)) return 0
+    return channel <= 0.03928 ? channel / 12.92 : Math.pow((channel + 0.055) / 1.055, 2.4)
+  }
+
+  function colorLuminance(color) {
+    return 0.2126 * colorChannelLuminance(color.r)
+      + 0.7152 * colorChannelLuminance(color.g)
+      + 0.0722 * colorChannelLuminance(color.b)
+  }
+
+  function codexIconSource() {
+    return colorLuminance(foreground) < 0.5
+      ? Qt.resolvedUrl("assets/codex-light.svg")
+      : Qt.resolvedUrl("assets/codex.svg")
+  }
+
   function iconSourceForProvider(provider) {
     if (!provider) return ""
     if (provider.providerId === "claude") return Qt.resolvedUrl("assets/claude.svg")
-    if (provider.providerId === "codex") return Qt.resolvedUrl("assets/codex.svg")
+    if (provider.providerId === "codex") return codexIconSource()
     return ""
   }
 
diff --git a/shell/plugins/model-usage/assets/codex-light.svg b/shell/plugins/model-usage/assets/codex-light.svg
new file mode 100644
index 00000000..62b66865
--- /dev/null
+++ b/shell/plugins/model-usage/assets/codex-light.svg
@@ -0,0 +1 @@
+<svg fill="#111" fill-rule="evenodd" height="1em" style="flex:none;line-height:1" viewBox="0 0 24 24" width="1em" xmlns="http://www.w3.org/2000/svg"><title>Codex</title><path clip-rule="evenodd" d="M8.086.457a6.105 6.105 0 013.046-.415c1.333.153 2.521.72 3.564 1.7a.117.117 0 00.107.029c1.408-.346 2.762-.224 4.061.366l.063.03.154.076c1.357.703 2.33 1.77 2.918 3.198.278.679.418 1.388.421 2.126a5.655 5.655 0 01-.18 1.631.167.167 0 00.04.155 5.982 5.982 0 011.578 2.891c.385 1.901-.01 3.615-1.183 5.14l-.182.22a6.063 6.063 0 01-2.934 1.851.162.162 0 00-.108.102c-.255.736-.511 1.364-.987 1.992-1.199 1.582-2.962 2.462-4.948 2.451-1.583-.008-2.986-.587-4.21-1.736a.145.145 0 00-.14-.032c-.518.167-1.04.191-1.604.185a5.924 5.924 0 01-2.595-.622 6.058 6.058 0 01-2.146-1.781c-.203-.269-.404-.522-.551-.821a7.74 7.74 0 01-.495-1.283 6.11 6.11 0 01-.017-3.064.166.166 0 00.008-.074.115.115 0 00-.037-.064 5.958 5.958 0 01-1.38-2.202 5.196 5.196 0 01-.333-1.589 6.915 6.915 0 01.188-2.132c.45-1.484 1.309-2.648 2.577-3.493.282-.188.55-.334.802-.438.286-.12.573-.22.861-.304a.129.129 0 00.087-.087A6.016 6.016 0 015.635 2.31C6.315 1.464 7.132.846 8.086.457zm-.804 7.85a.848.848 0 00-1.473.842l1.694 2.965-1.688 2.848a.849.849 0 001.46.864l1.94-3.272a.849.849 0 00.007-.854l-1.94-3.393zm5.446 6.24a.849.849 0 000 1.695h4.848a.849.849 0 000-1.696h-4.848z"/></svg>
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