diff --git a/src/components/iframe/IframeHeader.tsx b/src/components/iframe/IframeHeader.tsx
index 383bc06..a3c8ce8 100644
--- a/src/components/iframe/IframeHeader.tsx
+++ b/src/components/iframe/IframeHeader.tsx
@@ -98,7 +98,7 @@ export function IframeHeader(props: { url: string }) {
     <div>
       <div
         id="iframeNav"
-        className="flex h-16 flex-row items-center justify-between gap-3 bg-navbar-color px-4"
+        className="flex h-16 flex-row items-center justify-between gap-3 bg-navbar-color px-4 border-b-2 border-border-color"
       >
         <div className="w-1/8">
           <div className="flex flex-row items-center">
diff --git a/src/locales/en.json b/src/locales/en.json
index b88b173..c64bd85 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -79,6 +79,7 @@
   "comingsoon": "Coming soon!",
   "themes": {
     "main": "Main",
+    "hacker": "Hacker",
     "catppuccinMocha": "Catppuccin Mocha",
     "catppuccinMacchiato": "Catppuccin Macchiato",
     "catppuccinFrappe": "Catppuccin Frappe",
diff --git a/src/locales/es.json b/src/locales/es.json
index 7964762..a8361cb 100644
--- a/src/locales/es.json
+++ b/src/locales/es.json
@@ -78,6 +78,7 @@
   "comingsoon": "¡Próximamente!",
   "themes": {
     "main": "Por defecto",
+    "hacker": "Hacker",
     "catppuccinMocha": "Catppuccin Mocha",
     "catppuccinMacchiato": "Catppuccin Macchiato",
     "catppuccinFrappe": "Catppuccin Frappe",
diff --git a/src/locales/ja.json b/src/locales/ja.json
index 3a164a2..1c8d51c 100644
--- a/src/locales/ja.json
+++ b/src/locales/ja.json
@@ -78,6 +78,7 @@
   "comingsoon": "近日公開",
   "themes": {
     "main": "デフォルト",
+    "hacker": "ハッカー",
     "catppuccinMocha": "Catppuccin Mocha",
     "catppuccinMacchiato": "Catppuccin Macchiato",
     "catppuccinFrappe": "Catppuccin Frappe",
diff --git a/src/pages/Settings/Customization.tsx b/src/pages/Settings/Customization.tsx
index 01455c1..635ab67 100644
--- a/src/pages/Settings/Customization.tsx
+++ b/src/pages/Settings/Customization.tsx
@@ -8,7 +8,7 @@ function Customization({ id, active }) {
 
   const themes = [
     { id: "main", label: t("themes.main") },
-    { id: "hacker", label: "Hacker" },
+    { id: "hacker", label: t("themes.hacker") },
     { id: "catppuccinMocha", label: t("themes.catppuccinMocha") },
     { id: "catppuccinMacchiato", label: t("themes.catppuccinMacchiato") },
     { id: "catppuccinFrappe", label: t("themes.catppuccinFrappe") },