diff --git a/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/chrome.css b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/chrome.css
new file mode 100644
index 00000000..3c205be0
--- /dev/null
+++ b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/chrome.css
@@ -0,0 +1,37 @@
+
+#tabbrowser-tabbox {
+    #zen-sidebar-web-panel-wrapper {
+        margin: 10px !important;
+
+@media (-moz-bool-pref: "zen.view.compact.hide-tabbar") {
+            margin-left: 16px !important;
+        }
+
+#zen-sidebar-web-panel {
+            box-shadow: none !important;
+            min-width: 300px !important; 
+            max-width: 100% !important; 
+            position: relative;
+            overflow: auto;
+            resize: both;
+            background: var(--uc-custom-zen-sidebar-panel-color-background, #21212180) !important;
+            backdrop-filter: blur(var(--uc-custom-zen-sidebar-panel-blur, 3px)) !important;
+            border-radius: var(--uc-custom-zen-sidebar-panel-border-radius, 15px) !important;
+            box-shadow: 0 var(--uc-custom-zen-sidebar-panel-shadow-position, 0px) var(--uc-custom-zen-sidebar-panel-shadow-strength, 5px) var(--uc-custom-zen-sidebar-panel-color-shadow, #3d3d3d1a)  !important;
+            browser {opacity: var(--uc-custom-zen-sidebar-panel-color-opacity, 0.8);}
+
+@media (-moz-bool-pref: "uc.custom-zen-sidebar-panel.show-borders") {
+                border: 1 !important;
+            }
+            @media not (-moz-bool-pref: "uc.custom-zen-sidebar-panel.show-borders") {
+                border: 0 !important;
+            }
+
+resizer {
+                @media not (-moz-bool-pref: "uc.custom-zen-sidebar-panel.transparent-resizer") {
+                    background: transparent;
+                }
+            }
+        }
+    }
+}
diff --git a/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/image.png b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/image.png
new file mode 100644
index 00000000..0844a7e1
Binary files /dev/null and b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/image.png differ
diff --git a/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/preferences.json b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/preferences.json
new file mode 100644
index 00000000..902030b8
--- /dev/null
+++ b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/preferences.json
@@ -0,0 +1,47 @@
+[
+    {
+        "property": "uc.custom-zen-sidebar-panel.color.background",
+        "label": "Background (Hex: #RRGGBBAA / def: #21212180)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.color.opacity",
+        "label": "Opacity (Between 0, 1 / def: 0.8)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.show-borders",
+        "label": "Show Borders",
+        "type": "checkbox"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.color.shadow",
+        "label": "Shadow (Hex: #RRGGBBAA / def: #3d3d3d1a)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.shadow-position",
+        "label": "Shadow Position (n+px / def: 0px)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.shadow-strength",
+        "label": "Shadow Strength (n+px / def: 5px)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.blur",
+        "label": "Blur (n+px / def: 3px)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.border-radius",
+        "label": "Border Radius (n+px or n+% / def: 15px)",
+        "type": "string"
+    },
+    {
+        "property": "uc.custom-zen-sidebar-panel.transparent-resizer",
+        "label": "Show Resizer",
+        "type": "checkbox"
+    }
+]
\ No newline at end of file
diff --git a/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/readme.md b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/readme.md
new file mode 100644
index 00000000..ec79fc3f
--- /dev/null
+++ b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/readme.md
@@ -0,0 +1,4 @@
+
+# Custom Sidebar Panel
+
+A Zen Browser mod that allows you to customize the Zen Sidebar Panel.
diff --git a/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/theme.json b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/theme.json
new file mode 100644
index 00000000..4028af80
--- /dev/null
+++ b/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/theme.json
@@ -0,0 +1,15 @@
+{
+    "id": "51b7616f-9df3-4fb6-81bf-cb64068d4113",
+    "name": "Custom Sidebar Panel",
+    "description": "A Zen Browser mod that allows you to customize the Zen Sidebar Panel.",
+    "homepage": "",
+    "style": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/chrome.css",
+    "readme": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/readme.md",
+    "image": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/image.png",
+    "author": "KorvusDev",
+    "version": "1.0.0",
+    "tags": [],
+    "createdAt": "2024-10-23",
+    "updatedAt": "2024-10-23",
+    "preferences": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/51b7616f-9df3-4fb6-81bf-cb64068d4113/preferences.json"
+}
\ No newline at end of file