diff --git a/chrome-extension/images/icon-128.png b/chrome-extension/images/icon-128.png
new file mode 100644
index 0000000..0fc5e04
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diff --git a/chrome-extension/images/icon-16.png b/chrome-extension/images/icon-16.png
new file mode 100644
index 0000000..4fc35e7
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diff --git a/chrome-extension/images/icon-48.png b/chrome-extension/images/icon-48.png
new file mode 100644
index 0000000..407bf3c
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diff --git a/public/index.html b/public/index.html
index e694d99..d3d7c00 100644
--- a/public/index.html
+++ b/public/index.html
@@ -571,7 +571,7 @@ body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellips
       </div>
       <div class="form-group">
         <label class="form-label">API Key (Base64 credentials)</label>
-        <input class="form-input" id="ampp-api-key" type="password" placeholder="Leave blank to keep existing" autocomplete="new-password"/>
+        <input class="form-input" id="ampp-api-key" type="password" placeholder="Enter API key — leave blank to keep existing" autocomplete="off" readonly onfocus="this.removeAttribute('readonly')"/>
         <div class="form-hint" id="ampp-key-hint"></div>
       </div>
       <div class="btn-row">