Return the tabs demo to one example

app/build-apk.sh

@@ -7,15 +7,15 @@
 #   emulator stays on debug" rule -- pass `release` explicitly for a phone
 #   build). --abi defaults to arm64-v8a (a phone/real device); pass
 #   x86_64 for this checkout's own AVD. --features defaults to
-#   "transcript-screen". Pass "transcript-screen bench" for the retained
-#   benchmark app. Never force GLES for a phone or emulator build; Iris's
+#   "screens". Pass "screens bench" for the retained benchmark app. Never
+#   force GLES for a phone or emulator build; Iris's
 #   runtime selects the available hardware backend.
 set -eu
 cd "$(dirname "$0")"
 
 BUILD_TYPE="debug"
 ABI="arm64-v8a"
-FEATURES="transcript-screen"
+FEATURES="screens"
 case "${1:-}" in
     debug|release) BUILD_TYPE="$1"; shift ;;
 esac