diff --git a/packages/opencode/src/cli/cmd/tui/context/theme.tsx b/packages/opencode/src/cli/cmd/tui/context/theme.tsx
index 41c5a4a831c..09dc23b5750 100644
--- a/packages/opencode/src/cli/cmd/tui/context/theme.tsx
+++ b/packages/opencode/src/cli/cmd/tui/context/theme.tsx
@@ -32,6 +32,7 @@ import rosepine from "./theme/rosepine.json" with { type: "json" }
 import solarized from "./theme/solarized.json" with { type: "json" }
 import synthwave84 from "./theme/synthwave84.json" with { type: "json" }
 import tokyonight from "./theme/tokyonight.json" with { type: "json" }
+import transparent from "./theme/transparent.json" with { type: "json" }
 import vercel from "./theme/vercel.json" with { type: "json" }
 import vesper from "./theme/vesper.json" with { type: "json" }
 import zenburn from "./theme/zenburn.json" with { type: "json" }
@@ -167,6 +168,7 @@ export const DEFAULT_THEMES: Record<string, ThemeJson> = {
   solarized,
   synthwave84,
   tokyonight,
+  transparent,
   vesper,
   vercel,
   zenburn,
diff --git a/packages/opencode/src/cli/cmd/tui/context/theme/transparent.json b/packages/opencode/src/cli/cmd/tui/context/theme/transparent.json
new file mode 100644
index 00000000000..4fd2226247d
--- /dev/null
+++ b/packages/opencode/src/cli/cmd/tui/context/theme/transparent.json
@@ -0,0 +1,234 @@
+{
+  "$schema": "https://opencode.ai/theme.json",
+  "defs": {
+    "darkStep1": "#0a0a0a",
+    "darkStep2": "#141414",
+    "darkStep3": "#1e1e1e",
+    "darkStep4": "#282828",
+    "darkStep5": "#323232",
+    "darkStep6": "#3c3c3c",
+    "darkStep7": "#484848",
+    "darkStep8": "#606060",
+    "darkStep9": "#fab283",
+    "darkStep10": "#ffc09f",
+    "darkStep11": "#808080",
+    "darkStep12": "#eeeeee",
+    "darkSecondary": "#5c9cf5",
+    "darkAccent": "#9d7cd8",
+    "darkRed": "#e06c75",
+    "darkOrange": "#f5a742",
+    "darkGreen": "#7fd88f",
+    "darkCyan": "#56b6c2",
+    "darkYellow": "#e5c07b",
+    "lightStep1": "#ffffff",
+    "lightStep2": "#fafafa",
+    "lightStep3": "#f5f5f5",
+    "lightStep4": "#ebebeb",
+    "lightStep5": "#e1e1e1",
+    "lightStep6": "#d4d4d4",
+    "lightStep7": "#b8b8b8",
+    "lightStep8": "#a0a0a0",
+    "lightStep9": "#3b7dd8",
+    "lightStep10": "#2968c3",
+    "lightStep11": "#8a8a8a",
+    "lightStep12": "#1a1a1a",
+    "lightSecondary": "#7b5bb6",
+    "lightAccent": "#d68c27",
+    "lightRed": "#d1383d",
+    "lightOrange": "#d68c27",
+    "lightGreen": "#3d9a57",
+    "lightCyan": "#318795",
+    "lightYellow": "#b0851f"
+  },
+  "theme": {
+    "primary": {
+      "dark": "darkStep9",
+      "light": "lightStep9"
+    },
+    "secondary": {
+      "dark": "darkSecondary",
+      "light": "lightSecondary"
+    },
+    "accent": {
+      "dark": "darkAccent",
+      "light": "lightAccent"
+    },
+    "error": {
+      "dark": "darkRed",
+      "light": "lightRed"
+    },
+    "warning": {
+      "dark": "darkOrange",
+      "light": "lightOrange"
+    },
+    "success": {
+      "dark": "darkGreen",
+      "light": "lightGreen"
+    },
+    "info": {
+      "dark": "darkCyan",
+      "light": "lightCyan"
+    },
+    "text": {
+      "dark": "darkStep12",
+      "light": "lightStep12"
+    },
+    "textMuted": {
+      "dark": "darkStep11",
+      "light": "lightStep11"
+    },
+    "background": "none",
+    "backgroundPanel": "none",
+    "backgroundElement": "none",
+    "backgroundMenu": "none",
+    "border": {
+      "dark": "darkStep7",
+      "light": "lightStep7"
+    },
+    "borderActive": {
+      "dark": "darkStep8",
+      "light": "lightStep8"
+    },
+    "borderSubtle": {
+      "dark": "darkStep6",
+      "light": "lightStep6"
+    },
+    "diffAdded": {
+      "dark": "#4fd6be",
+      "light": "#1e725c"
+    },
+    "diffRemoved": {
+      "dark": "#c53b53",
+      "light": "#c53b53"
+    },
+    "diffContext": {
+      "dark": "#828bb8",
+      "light": "#7086b5"
+    },
+    "diffHunkHeader": {
+      "dark": "#828bb8",
+      "light": "#7086b5"
+    },
+    "diffHighlightAdded": {
+      "dark": "#b8db87",
+      "light": "#4db380"
+    },
+    "diffHighlightRemoved": {
+      "dark": "#e26a75",
+      "light": "#f52a65"
+    },
+    "diffAddedBg": {
+      "dark": "#20303b",
+      "light": "#d5e5d5"
+    },
+    "diffRemovedBg": {
+      "dark": "#37222c",
+      "light": "#f7d8db"
+    },
+    "diffContextBg": "none",
+    "diffLineNumber": {
+      "dark": "darkStep3",
+      "light": "lightStep3"
+    },
+    "diffAddedLineNumberBg": {
+      "dark": "#1b2b34",
+      "light": "#c5d5c5"
+    },
+    "diffRemovedLineNumberBg": {
+      "dark": "#2d1f26",
+      "light": "#e7c8cb"
+    },
+    "markdownText": {
+      "dark": "darkStep12",
+      "light": "lightStep12"
+    },
+    "markdownHeading": {
+      "dark": "darkAccent",
+      "light": "lightAccent"
+    },
+    "markdownLink": {
+      "dark": "darkStep9",
+      "light": "lightStep9"
+    },
+    "markdownLinkText": {
+      "dark": "darkCyan",
+      "light": "lightCyan"
+    },
+    "markdownCode": {
+      "dark": "darkGreen",
+      "light": "lightGreen"
+    },
+    "markdownBlockQuote": {
+      "dark": "darkYellow",
+      "light": "lightYellow"
+    },
+    "markdownEmph": {
+      "dark": "darkYellow",
+      "light": "lightYellow"
+    },
+    "markdownStrong": {
+      "dark": "darkOrange",
+      "light": "lightOrange"
+    },
+    "markdownHorizontalRule": {
+      "dark": "darkStep11",
+      "light": "lightStep11"
+    },
+    "markdownListItem": {
+      "dark": "darkStep9",
+      "light": "lightStep9"
+    },
+    "markdownListEnumeration": {
+      "dark": "darkCyan",
+      "light": "lightCyan"
+    },
+    "markdownImage": {
+      "dark": "darkStep9",
+      "light": "lightStep9"
+    },
+    "markdownImageText": {
+      "dark": "darkCyan",
+      "light": "lightCyan"
+    },
+    "markdownCodeBlock": {
+      "dark": "darkStep12",
+      "light": "lightStep12"
+    },
+    "syntaxComment": {
+      "dark": "darkStep11",
+      "light": "lightStep11"
+    },
+    "syntaxKeyword": {
+      "dark": "darkAccent",
+      "light": "lightAccent"
+    },
+    "syntaxFunction": {
+      "dark": "darkStep9",
+      "light": "lightStep9"
+    },
+    "syntaxVariable": {
+      "dark": "darkRed",
+      "light": "lightRed"
+    },
+    "syntaxString": {
+      "dark": "darkGreen",
+      "light": "lightGreen"
+    },
+    "syntaxNumber": {
+      "dark": "darkOrange",
+      "light": "lightOrange"
+    },
+    "syntaxType": {
+      "dark": "darkYellow",
+      "light": "lightYellow"
+    },
+    "syntaxOperator": {
+      "dark": "darkCyan",
+      "light": "lightCyan"
+    },
+    "syntaxPunctuation": {
+      "dark": "darkStep12",
+      "light": "lightStep12"
+    }
+  }
+}
diff --git a/packages/web/src/content/docs/themes.mdx b/packages/web/src/content/docs/themes.mdx
index d37ce313556..b862189ced5 100644
--- a/packages/web/src/content/docs/themes.mdx
+++ b/packages/web/src/content/docs/themes.mdx
@@ -28,6 +28,7 @@ OpenCode comes with several built-in themes.
 | Name                   | Description                                                                  |
 | ---------------------- | ---------------------------------------------------------------------------- |
 | `system`               | Adapts to your terminal’s background color                                   |
+| `transparent`          | Keeps TUI surfaces transparent to let your terminal background show through  |
 | `tokyonight`           | Based on the [Tokyonight](https://github.com/folke/tokyonight.nvim) theme    |
 | `everforest`           | Based on the [Everforest](https://github.com/sainnhe/everforest) theme       |
 | `ayu`                  | Based on the [Ayu](https://github.com/ayu-theme) dark theme                  |