diff --git a/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/chrome.css b/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/chrome.css
index 21ed2682..c5b52b1d 100644
--- a/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/chrome.css
+++ b/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/chrome.css
@@ -6,31 +6,48 @@
     right: calc(var(--zen-element-separation) * 2) !important;
   }
 
-:root[zen-right-side='true'] & {
+  :root[zen-right-side='true'] & {
     left: calc(var(--zen-element-separation) * 2) !important;
   }
 
-& .zen-toast {
-
-padding: 6px !important;
+  & .zen-toast {
+    padding: 6px !important;
     border-radius: 12px !important;
     font-weight: 600 !important;
     font-size: 12px !important;
     box-shadow: 0px !important ;
-    border: 1px solid rgba(0, 0, 0, 0.2) !important;
-    background: rgba(255, 255, 255, 0.2)  !important;
-    color: color-mix(in srgb, var(--button-primary-color) 20%, transparent) !important;
     
     & .description {
         font-size: 10px !important;
     }
-  }
 
-& .zen-toast:hover {
-    background: var(--zen-primary-color) !important;
-    color: var(--button-primary-color) !important;
-    border: 1px solid rgba(0, 0, 0, 0.0) !important;
-    transition: 0.3s !important;
+    &:has(#mod-zentoast[mod-zentoast-background_opacity="0.1"]) { background: rgba(255, 255, 255, 0.1) !important; }
+    &:has(#mod-zentoast[mod-zentoast-background_opacity="0.2"]) { background: rgba(255, 255, 255, 0.2) !important; }
+    &:has(#mod-zentoast[mod-zentoast-background_opacity="0.3"]) { background: rgba(255, 255, 255, 0.3) !important; }
+    &:has(#mod-zentoast[mod-zentoast-background_opacity="0.4"]) { background: rgba(255, 255, 255, 0.4) !important; }
+    &:has(#mod-zentoast[mod-zentoast-background_opacity="0.5"]) { background: rgba(255, 255, 255, 0.5) !important; }
+    &:has(#mod-zentoast[mod-zentoast-background_opacity="0.6"]) { background: rgba(255, 255, 255, 0.6) !important; }
+
+    &:has(#mod-zentoast[mod-zentoast-border_opacity="0.1"]) { border: 1px solid rgba(0, 0, 0, 0.1) !important; }
+    &:has(#mod-zentoast[mod-zentoast-border_opacity="0.2"]) { border: 1px solid rgba(0, 0, 0, 0.2) !important; }
+    &:has(#mod-zentoast[mod-zentoast-border_opacity="0.3"]) { border: 1px solid rgba(0, 0, 0, 0.3) !important; }
+    &:has(#mod-zentoast[mod-zentoast-border_opacity="0.4"]) { border: 1px solid rgba(0, 0, 0, 0.4) !important; }
+    &:has(#mod-zentoast[mod-zentoast-border_opacity="0.5"]) { border: 1px solid rgba(0, 0, 0, 0.5) !important; }
+    &:has(#mod-zentoast[mod-zentoast-border_opacity="0.6"]) { border: 1px solid rgba(0, 0, 0, 0.6) !important; }
+
+    &:has(#mod-zentoast[mod-zentoast-text_opacity="0.1"]) { color: rgba(0, 0, 0, 0.1) !important; }
+    &:has(#mod-zentoast[mod-zentoast-text_opacity="0.2"]) { color: rgba(0, 0, 0, 0.2) !important; }
+    &:has(#mod-zentoast[mod-zentoast-text_opacity="0.3"]) { color: rgba(0, 0, 0, 0.3) !important; }
+    &:has(#mod-zentoast[mod-zentoast-text_opacity="0.4"]) { color: rgba(0, 0, 0, 0.4) !important; }
+    &:has(#mod-zentoast[mod-zentoast-text_opacity="0.5"]) { color: rgba(0, 0, 0, 0.5) !important; }
+    &:has(#mod-zentoast[mod-zentoast-text_opacity="0.6"]) { color: rgba(0, 0, 0, 0.6) !important; }
+
+    &:hover {
+      background: var(--zen-primary-color) !important;
+      color: var(--button-primary-color) !important;
+      border: 1px solid rgba(0, 0, 0, 0.0) !important;
+      transition: 0.3s !important;
+    }
   }
 
 }
diff --git a/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/preferences.json b/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/preferences.json
new file mode 100644
index 00000000..8a047779
--- /dev/null
+++ b/themes/e51b85e6-cef5-45d4-9fff-6986637974e1/preferences.json
@@ -0,0 +1,101 @@
+[
+  {
+    "property": "mod.zentoast.background_opacity",
+    "label": "Background opacity",
+    "type": "dropdown",
+    "placeholder": "Select background opacity",
+    "defaultValue": "0.3",
+    "options": [
+      {
+        "label": "10%",
+        "value": "0.1"
+      },
+      {
+        "label": "20%",
+        "value": "0.2"
+      },
+      {
+        "label": "30%",
+        "value": "0.3"
+      },
+      {
+        "label": "40%",
+        "value": "0.4"
+      },
+      {
+        "label": "50%",
+        "value": "0.5"
+      },
+      {
+        "label": "60%",
+        "value": "0.6"
+      }
+    ]
+  },
+  {
+    "property": "mod.zentoast.border_opacity",
+    "label": "Border opacity",
+    "type": "dropdown",
+    "placeholder": "Select border opacity",
+    "defaultValue": "0.3",
+    "options": [
+      {
+        "label": "10%",
+        "value": "0.1"
+      },
+      {
+        "label": "20%",
+        "value": "0.2"
+      },
+      {
+        "label": "30%",
+        "value": "0.3"
+      },
+      {
+        "label": "40%",
+        "value": "0.4"
+      },
+      {
+        "label": "50%",
+        "value": "0.5"
+      },
+      {
+        "label": "60%",
+        "value": "0.6"
+      }
+    ]
+  },
+  {
+    "property": "mod.zentoast.text_opacity",
+    "label": "Text opacity",
+    "type": "dropdown",
+    "placeholder": "Select text opacity",
+    "defaultValue": "0.3",
+    "options": [
+      {
+        "label": "10%",
+        "value": "0.1"
+      },
+      {
+        "label": "20%",
+        "value": "0.2"
+      },
+      {
+        "label": "30%",
+        "value": "0.3"
+      },
+      {
+        "label": "40%",
+        "value": "0.4"
+      },
+      {
+        "label": "50%",
+        "value": "0.5"
+      },
+      {
+        "label": "60%",
+        "value": "0.6"
+      }
+    ]
+  }
+]
\ No newline at end of file