feat(desktop): themes

3 files changed, 221 insertions, 106 deletions

diff --git a/packages/app/src/app.tsx b/packages/app/src/app.tsx
index de8fcf7d1..bf5ba9566 100644
--- a/packages/app/src/app.tsx
+++ b/packages/app/src/app.tsx
@@ -8,6 +8,7 @@ import { DiffComponentProvider } from "@opencode-ai/ui/context/diff"
 import { CodeComponentProvider } from "@opencode-ai/ui/context/code"
 import { Diff } from "@opencode-ai/ui/diff"
 import { Code } from "@opencode-ai/ui/code"
+import { ThemeProvider } from "@opencode-ai/ui/theme"
 import { GlobalSyncProvider } from "@/context/global-sync"
 import { LayoutProvider } from "@/context/layout"
 import { GlobalSDKProvider } from "@/context/global-sdk"
@@ -45,48 +46,50 @@ export function App() {
   return (
     <MetaProvider>
       <Font />
-      <ErrorBoundary fallback={(error) => <ErrorPage error={error} />}>
-        <DialogProvider>
-          <MarkedProvider>
-            <DiffComponentProvider component={Diff}>
-              <CodeComponentProvider component={Code}>
-                <GlobalSDKProvider url={url}>
-                  <GlobalSyncProvider>
-                    <LayoutProvider>
-                      <NotificationProvider>
-                        <Router
-                          root={(props) => (
-                            <CommandProvider>
-                              <Layout>{props.children}</Layout>
-                            </CommandProvider>
-                          )}
-                        >
-                          <Route path="/" component={Home} />
-                          <Route path="/:dir" component={DirectoryLayout}>
-                            <Route path="/" component={() => <Navigate href="session" />} />
-                            <Route
-                              path="/session/:id?"
-                              component={(p) => (
-                                <Show when={p.params.id || true} keyed>
-                                  <TerminalProvider>
-                                    <PromptProvider>
-                                      <Session />
-                                    </PromptProvider>
-                                  </TerminalProvider>
-                                </Show>
-                              )}
-                            />
-                          </Route>
-                        </Router>
-                      </NotificationProvider>
-                    </LayoutProvider>
-                  </GlobalSyncProvider>
-                </GlobalSDKProvider>
-              </CodeComponentProvider>
-            </DiffComponentProvider>
-          </MarkedProvider>
-        </DialogProvider>
-      </ErrorBoundary>
+      <ThemeProvider>
+        <ErrorBoundary fallback={(error) => <ErrorPage error={error} />}>
+          <DialogProvider>
+            <MarkedProvider>
+              <DiffComponentProvider component={Diff}>
+                <CodeComponentProvider component={Code}>
+                  <GlobalSDKProvider url={url}>
+                    <GlobalSyncProvider>
+                      <LayoutProvider>
+                        <NotificationProvider>
+                          <Router
+                            root={(props) => (
+                              <CommandProvider>
+                                <Layout>{props.children}</Layout>
+                              </CommandProvider>
+                            )}
+                          >
+                            <Route path="/" component={Home} />
+                            <Route path="/:dir" component={DirectoryLayout}>
+                              <Route path="/" component={() => <Navigate href="session" />} />
+                              <Route
+                                path="/session/:id?"
+                                component={(p) => (
+                                  <Show when={p.params.id || true} keyed>
+                                    <TerminalProvider>
+                                      <PromptProvider>
+                                        <Session />
+                                      </PromptProvider>
+                                    </TerminalProvider>
+                                  </Show>
+                                )}
+                              />
+                            </Route>
+                          </Router>
+                        </NotificationProvider>
+                      </LayoutProvider>
+                    </GlobalSyncProvider>
+                  </GlobalSDKProvider>
+                </CodeComponentProvider>
+              </DiffComponentProvider>
+            </MarkedProvider>
+          </DialogProvider>
+        </ErrorBoundary>
+      </ThemeProvider>
     </MetaProvider>
   )
 }
diff --git a/packages/app/src/components/terminal.tsx b/packages/app/src/components/terminal.tsx
index 1d6bab2a4..03251fe5f 100644
--- a/packages/app/src/components/terminal.tsx
+++ b/packages/app/src/components/terminal.tsx
@@ -1,9 +1,9 @@
 import { Ghostty, Terminal as Term, FitAddon } from "ghostty-web"
-import { ComponentProps, onCleanup, onMount, splitProps } from "solid-js"
+import { ComponentProps, createEffect, createSignal, onCleanup, onMount, splitProps } from "solid-js"
 import { useSDK } from "@/context/sdk"
 import { SerializeAddon } from "@/addons/serialize"
 import { LocalPTY } from "@/context/terminal"
-import { usePrefersDark } from "@solid-primitives/media"
+import { resolveThemeVariant, useTheme } from "@opencode-ai/ui/theme"
 
 export interface TerminalProps extends ComponentProps<"div"> {
   pty: LocalPTY
@@ -12,8 +12,28 @@ export interface TerminalProps extends ComponentProps<"div"> {
   onConnectError?: (error: unknown) => void
 }
 
+type TerminalColors = {
+  background: string
+  foreground: string
+  cursor: string
+}
+
+const DEFAULT_TERMINAL_COLORS: Record<"light" | "dark", TerminalColors> = {
+  light: {
+    background: "#fcfcfc",
+    foreground: "#211e1e",
+    cursor: "#211e1e",
+  },
+  dark: {
+    background: "#191515",
+    foreground: "#d4d4d4",
+    cursor: "#d4d4d4",
+  },
+}
+
 export const Terminal = (props: TerminalProps) => {
   const sdk = useSDK()
+  const theme = useTheme()
   let container!: HTMLDivElement
   const [local, others] = splitProps(props, ["pty", "class", "classList", "onConnectError"])
   let ws: WebSocket
@@ -22,7 +42,35 @@ export const Terminal = (props: TerminalProps) => {
   let serializeAddon: SerializeAddon
   let fitAddon: FitAddon
   let handleResize: () => void
-  const prefersDark = usePrefersDark()
+
+  const getTerminalColors = (): TerminalColors => {
+    const mode = theme.mode()
+    const fallback = DEFAULT_TERMINAL_COLORS[mode]
+    const currentTheme = theme.themes()[theme.themeId()]
+    if (!currentTheme) return fallback
+    const variant = mode === "dark" ? currentTheme.dark : currentTheme.light
+    if (!variant?.seeds) return fallback
+    const resolved = resolveThemeVariant(variant, mode === "dark")
+    const text = resolved["text-base"] ?? fallback.foreground
+    const background = resolved["background-stronger"] ?? fallback.background
+    return {
+      background,
+      foreground: text,
+      cursor: text,
+    }
+  }
+
+  const [terminalColors, setTerminalColors] = createSignal<TerminalColors>(getTerminalColors())
+
+  createEffect(() => {
+    const colors = getTerminalColors()
+    setTerminalColors(colors)
+    if (!term) return
+    const setOption = (term as unknown as { setOption?: (key: string, value: TerminalColors) => void }).setOption
+    if (!setOption) return
+    setOption("theme", colors)
+  })
+
   const focusTerminal = () => term?.focus()
   const copySelection = () => {
     if (!term || !term.hasSelection()) return false
@@ -62,17 +110,7 @@ export const Terminal = (props: TerminalProps) => {
       fontSize: 14,
       fontFamily: "IBM Plex Mono, monospace",
       allowTransparency: true,
-      theme: prefersDark()
-        ? {
-            background: "#191515",
-            foreground: "#d4d4d4",
-            cursor: "#d4d4d4",
-          }
-        : {
-            background: "#fcfcfc",
-            foreground: "#211e1e",
-            cursor: "#211e1e",
-          },
+      theme: terminalColors(),
       scrollback: 10_000,
       ghostty,
     })
@@ -192,6 +230,7 @@ export const Terminal = (props: TerminalProps) => {
       ref={container}
       data-component="terminal"
       data-prevent-autofocus
+      style={{ "background-color": terminalColors().background }}
       classList={{
         ...(local.classList ?? {}),
         "size-full px-6 py-3 font-mono": true,
diff --git a/packages/app/src/pages/layout.tsx b/packages/app/src/pages/layout.tsx
index 0b4e040b7..08b340187 100644
--- a/packages/app/src/pages/layout.tsx
+++ b/packages/app/src/pages/layout.tsx
@@ -47,6 +47,7 @@ import { useNotification } from "@/context/notification"
 import { Binary } from "@opencode-ai/util/binary"
 import { Header } from "@/components/header"
 import { useDialog } from "@opencode-ai/ui/context/dialog"
+import { useTheme, type ColorScheme } from "@opencode-ai/ui/theme"
 import { DialogSelectProvider } from "@/components/dialog-select-provider"
 import { useCommand } from "@/context/command"
 import { ConstrainDragXAxis } from "@/utils/solid-dnd"
@@ -89,6 +90,41 @@ export default function Layout(props: ParentProps) {
   const providers = useProviders()
   const dialog = useDialog()
   const command = useCommand()
+  const theme = useTheme()
+  const availableThemeEntries = createMemo(() => Object.entries(theme.themes()))
+  const colorSchemeOrder: ColorScheme[] = ["system", "light", "dark"]
+  const colorSchemeLabel: Record<ColorScheme, string> = {
+    system: "System",
+    light: "Light",
+    dark: "Dark",
+  }
+
+  function cycleTheme(direction = 1) {
+    const ids = availableThemeEntries().map(([id]) => id)
+    if (ids.length === 0) return
+    const currentIndex = ids.indexOf(theme.themeId())
+    const nextIndex = currentIndex === -1 ? 0 : (currentIndex + direction + ids.length) % ids.length
+    const nextThemeId = ids[nextIndex]
+    theme.setTheme(nextThemeId)
+    const nextTheme = theme.themes()[nextThemeId]
+    showToast({
+      title: "Theme switched",
+      description: nextTheme?.name ?? nextThemeId,
+    })
+  }
+
+  function cycleColorScheme(direction = 1) {
+    const current = theme.colorScheme()
+    const currentIndex = colorSchemeOrder.indexOf(current)
+    const nextIndex =
+      currentIndex === -1 ? 0 : (currentIndex + direction + colorSchemeOrder.length) % colorSchemeOrder.length
+    const next = colorSchemeOrder[nextIndex]
+    theme.setColorScheme(next)
+    showToast({
+      title: "Color scheme",
+      description: colorSchemeLabel[next],
+    })
+  }
 
   onMount(async () => {
     if (platform.checkUpdate && platform.update && platform.restart) {
@@ -286,57 +322,94 @@ export default function Layout(props: ParentProps) {
     }
   }
 
-  command.register(() => [
-    {
-      id: "sidebar.toggle",
-      title: "Toggle sidebar",
-      category: "View",
-      keybind: "mod+b",
-      onSelect: () => layout.sidebar.toggle(),
-    },
-    ...(platform.openDirectoryPickerDialog
-      ? [
-          {
-            id: "project.open",
-            title: "Open project",
-            category: "Project",
-            keybind: "mod+o",
-            onSelect: () => chooseProject(),
-          },
-        ]
-      : []),
-    {
-      id: "provider.connect",
-      title: "Connect provider",
-      category: "Provider",
-      onSelect: () => connectProvider(),
-    },
-    {
-      id: "session.previous",
-      title: "Previous session",
-      category: "Session",
-      keybind: "alt+arrowup",
-      onSelect: () => navigateSessionByOffset(-1),
-    },
-    {
-      id: "session.next",
-      title: "Next session",
-      category: "Session",
-      keybind: "alt+arrowdown",
-      onSelect: () => navigateSessionByOffset(1),
-    },
-    {
-      id: "session.archive",
-      title: "Archive session",
-      category: "Session",
-      keybind: "mod+shift+backspace",
-      disabled: !params.dir || !params.id,
-      onSelect: () => {
-        const session = currentSessions().find((s) => s.id === params.id)
-        if (session) archiveSession(session)
+  command.register(() => {
+    const commands = [
+      {
+        id: "sidebar.toggle",
+        title: "Toggle sidebar",
+        category: "View",
+        keybind: "mod+b",
+        onSelect: () => layout.sidebar.toggle(),
+      },
+      ...(platform.openDirectoryPickerDialog
+        ? [
+            {
+              id: "project.open",
+              title: "Open project",
+              category: "Project",
+              keybind: "mod+o",
+              onSelect: () => chooseProject(),
+            },
+          ]
+        : []),
+      {
+        id: "provider.connect",
+        title: "Connect provider",
+        category: "Provider",
+        onSelect: () => connectProvider(),
+      },
+      {
+        id: "session.previous",
+        title: "Previous session",
+        category: "Session",
+        keybind: "alt+arrowup",
+        onSelect: () => navigateSessionByOffset(-1),
       },
-    },
-  ])
+      {
+        id: "session.next",
+        title: "Next session",
+        category: "Session",
+        keybind: "alt+arrowdown",
+        onSelect: () => navigateSessionByOffset(1),
+      },
+      {
+        id: "session.archive",
+        title: "Archive session",
+        category: "Session",
+        keybind: "mod+shift+backspace",
+        disabled: !params.dir || !params.id,
+        onSelect: () => {
+          const session = currentSessions().find((s) => s.id === params.id)
+          if (session) archiveSession(session)
+        },
+      },
+      {
+        id: "theme.cycle",
+        title: "Cycle theme",
+        category: "Theme",
+        keybind: "mod+shift+t",
+        onSelect: () => cycleTheme(1),
+      },
+    ]
+
+    for (const [id, definition] of availableThemeEntries()) {
+      commands.push({
+        id: `theme.set.${id}`,
+        title: `Use theme: ${definition.name ?? id}`,
+        category: "Theme",
+        onSelect: () => theme.setTheme(id),
+      })
+    }
+
+    commands.push({
+      id: "theme.scheme.cycle",
+      title: "Cycle color scheme",
+      category: "Theme",
+      keybind: "mod+shift+s",
+      onSelect: () => cycleColorScheme(1),
+    })
+
+    for (const scheme of colorSchemeOrder) {
+      commands.push({
+        id: `theme.scheme.${scheme}`,
+        title: `Use color scheme: ${colorSchemeLabel[scheme]}`,
+        category: "Theme",
+        onSelect: () => theme.setColorScheme(scheme),
+      })
+    }
+
+    return commands
+  })
 
   function connectProvider() {
     dialog.show(() => <DialogSelectProvider />)