theme colors for dialog textarea placeholders (#19939)

packages/opencode/src/cli/cmd/tui/routes/session/question.tsx

@@ -387,6 +387,7 @@ export function QuestionPrompt(props: { request: QuestionRequest }) {
                         }}
                         initialValue={input()}
                         placeholder="Type your own answer"
+                        placeholderColor={theme.textMuted}
                         minHeight={1}
                         maxHeight={6}
                         textColor={theme.text}

packages/opencode/src/cli/cmd/tui/ui/dialog-export-options.tsx

@@ -103,6 +103,7 @@ export function DialogExportOptions(props: DialogExportOptionsProps) {
           ref={(val: TextareaRenderable) => (textarea = val)}
           initialValue={props.defaultFilename}
           placeholder="Enter filename"
+          placeholderColor={theme.textMuted}
           textColor={theme.text}
           focusedTextColor={theme.text}
           cursorColor={theme.text}

packages/opencode/src/cli/cmd/tui/ui/dialog-prompt.tsx

@@ -74,6 +74,7 @@ export function DialogPrompt(props: DialogPromptProps) {
           ref={(val: TextareaRenderable) => (textarea = val)}
           initialValue={props.value}
           placeholder={props.placeholder ?? "Enter text"}
+          placeholderColor={theme.textMuted}
           textColor={props.busy ? theme.textMuted : theme.text}
           focusedTextColor={props.busy ? theme.textMuted : theme.text}
           cursorColor={props.busy ? theme.backgroundElement : theme.text}

packages/opencode/src/cli/cmd/tui/ui/dialog-select.tsx

@@ -260,6 +260,7 @@ export function DialogSelect<T>(props: DialogSelectProps<T>) {
               }, 1)
             }}
             placeholder={props.placeholder ?? "Search"}
+            placeholderColor={theme.textMuted}
           />
         </box>
       </box>