diff --git a/README.md b/README.md
index 73544c1..a125b14 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,19 @@
 # Octo Firefox
 
-Thème Firefox monochrome épuré avec basculement automatique clair/foncé.
+Thème Firefox épuré avec basculement automatique clair/foncé.
+
+![Thème clair](assets/preview.svg)
+![Thème dark](assets/preview-dark.svg)
 
 ## Ce que ça fait
 
-Ce thème applique une palette strictement monochrome à l'interface de Firefox, barres d'outils, onglets, popups et sidebar. Le thème s'adapte automatiquement au mode système : clair le jour, foncé la nuit.
+Ce thème applique une palette monochrome à l'interface de Firefox, barres d'outils, onglets, popups et sidebar. Le thème s'adapte automatiquement au mode système : clair le jour, foncé la nuit.
 
 ## Installation
 
-1. Télécharge le fichier `.xpi` depuis les [releases](../../releases).
-2. Dans Firefox, ouvre `about:addons`.
-3. Clique sur l'icône ⚙️ → **Installer un module depuis un fichier...** et sélectionne le fichier téléchargé.
+### Depuis Firefox Add-ons
+
+Installe directement depuis [addons.mozilla.org](https://addons.mozilla.org/en-US/firefox/addon/octo-theme/).
 
 ## Développement
 
diff --git a/assets/preview-dark.svg b/assets/preview-dark.svg
new file mode 100644
index 0000000..5ae1f47
--- /dev/null
+++ b/assets/preview-dark.svg
@@ -0,0 +1,48 @@
+
+
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+    </g>
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diff --git a/assets/preview.svg b/assets/preview.svg
new file mode 100644
index 0000000..73441c9
--- /dev/null
+++ b/assets/preview.svg
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+        <rect class="toolbar fill" fill="#f5f5f5"
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+        <rect class="tab_background_text fill" fill="#666666"
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+        <rect id="svg-url-field" class="toolbar_field fill" fill="#ffffff"
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diff --git a/icons/icon.svg b/icons/icon.svg
index 13f5dec..44f1036 100644
--- a/icons/icon.svg
+++ b/icons/icon.svg
@@ -5,12 +5,8 @@
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