feat: split the bar in two on DP-3

DP-3 is rotated, so a bar there is 1080px wide rather than 1920, and one bar
holding every module was too crowded. Status sits on top now, the desktop
itself along the bottom: workspaces on the left, open windows on the right.
Both bars are one waybar process reading one stylesheet, because waybar takes
a top-level array of bars, so the two cannot drift apart.

Presentation mode is the statusctl-backed module the DP-1 bar already runs,
rather than the wb-idle module written for this bar. It talks to files under
XDG_RUNTIME_DIR instead of to quickshell, so it keeps working while the shell
is down, and it already emits a state class, so the glyphs are simply dropped
and the icon chosen in CSS. wb-idle and its module are gone.

The module needs a format of one space. It defaults to "{text}", statusctl
emits an empty text, and waybar draws no widget at all for a custom module
whose formatted output is empty: not an empty pill, no pill. That is the same
trap the launcher hit, and it cost a wrong diagnosis on the way: a min-height
was added first on the theory that the pill was collapsing, which was treating
a symptom of a widget that did not exist. A forced red background proved it
was never drawn at all.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

10 files changed, 178 insertions, 145 deletions

diff --git a/README.md b/README.md
index 131d249..d7f995e 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,22 @@
 # waybar-theme-udt
 
-A waybar bar for DP-3: pill clusters, icons from the desktop's own icon theme
-instead of font glyphs, and colours driven by
+Two waybar bars for DP-3: pill clusters, icons from the desktop's own icon
+theme instead of font glyphs, and colours driven by
 [unified-desktop-theme](../unified-desktop-theme).
 
-    [◆] [📅 Wed 15/09] [🕑 14:32] [1..8] [●●]   [ open apps ]   [🔊] [tray] [⏻] [🇮🇹]
+    top     [📅 Wed 15/09] [🕑 14:32] [●●]      [S]      [●] [🔊] [tray] [⏻] [🇮🇹]
+    bottom  [1..8]                                          [ open windows ]
 
 Each bracket is a pill. Pills group into clusters with gaps between them, so
-the bar reads as a few objects rather than one strip. Hover cross-fades
+the bars read as a few objects rather than one strip. Hover cross-fades
 background and text over 0.3s; taskbar buttons underline in the accent.
 
+DP-3 is rotated, so a bar there is 1080px wide rather than 1920, and one bar
+holding everything was too crowded. Status sits on top, the desktop itself
+(workspaces and open windows) along the bottom. Both bars are one waybar
+process reading one stylesheet: waybar takes a top-level array of bars, so
+they cannot drift apart.
+
 ## Install
 
     ./install.sh
@@ -65,11 +72,13 @@ their national colours.
 
 ## Layout
 
-| Cluster | Modules |
-| --- | --- |
-| left | launcher, date, time, workspaces, VM dots |
-| center | open applications |
-| right | privacy dots, volume drawer, tray, presentation mode, language |
+| Bar | Cluster | Modules |
+| --- | --- | --- |
+| top | left | date, time, VM dots |
+| top | centre | launcher |
+| top | right | privacy dots, volume drawer, tray, presentation mode, language |
+| bottom | left | workspaces |
+| bottom | right | open windows |
 
 No battery, temperature, CPU, memory or backlight: this is a desktop.
 
@@ -105,7 +114,7 @@ Macchiato values when it is missing, so they still run standalone.
     modules/              one file per module, by source
     styles/               style.css imports the rest in order
     icons/                the two icons the icon theme lacks
-    bin/                  wb-icon, wb-idle, and the two dot scripts
+    bin/                  wb-icon, wb-lang, and the two dot scripts
 
 Wildcard `include` has been broken since waybar v0.14.0, so `config.jsonc`
 lists every module file explicitly.
diff --git a/SPEC.md b/SPEC.md
index c6a2fae..16a701b 100644
--- a/SPEC.md
+++ b/SPEC.md
@@ -23,9 +23,16 @@ pointed at DP-3.
 
 ## Layout
 
-    ┌ left ──────────────────────────────┐ ┌ center ┐ ┌ right ─────────────────────┐
-    [◆] [📅 Wed 15/09] [🕑 14:32] [1..8] [●●]  [ open apps ]  [🔊 62%] [tray] [⏻] [🇮🇹]
-     launcher  date      time  workspaces vm    taskbar        volume  tray present lang
+    top     [📅 Wed 15/09] [🕑 14:32] [●●]      [S]      [●] [🔊] [tray] [⏻] [🇮🇹]
+             date           time       vm     launcher  priv vol   tray present lang
+
+    bottom  [1..8]                                          [ open windows ]
+             workspaces                                       taskbar
+
+DP-3 is rotated, so a bar there is 1080px wide rather than 1920. One bar
+holding every module was too crowded at that width, so status sits on top and
+the desktop itself along the bottom. Both are one waybar process reading one
+stylesheet: waybar takes a top-level array of bars.
 
 Each bracket is one pill. Neighbouring pills in a cluster share a background
 and weld together with asymmetric corner radii; clusters are separated by
@@ -43,7 +50,7 @@ transparent gaps, so the bar reads as groups rather than a continuous strip.
 | center | `wlr/taskbar` | `icon-theme` config key | Per-window application icons. |
 | right | `group/wireplumber` | `image` module | Drawer group kept as it is today. |
 | right | `tray` | application-provided | |
-| right | `idle_inhibitor` | `image` module | Presentation mode. |
+| right | `custom/presentation` | CSS, keyed on the module's class | Presentation mode, the same `statusctl`-backed module the DP-1 bar runs. It already emits an empty text and a state class, so the icon is chosen in CSS and the glyphs are simply dropped. |
 | right | `image#lang` | `flag-it.svg` / `flag-gb.svg`, shipped here | An `image` module: `hyprland/language` styles as `#language` only, with no per-language class, so a flag cannot be selected in CSS. |
 
 Dropped from the current bar: `custom/breaktimer`, `custom/mail`,
@@ -128,7 +135,7 @@ Modular, one file per module, mirroring the current setup:
         tray.jsonc
         wireplumber.jsonc
       image/
-        idle_inhibitor.jsonc  presentation mode, via `image`
+        language.jsonc        the keyboard flag, via `image`
     styles/
       style.css               entry point, imports the rest in order
       theme.css               GENERATED by udt-palette, gitignored
diff --git a/bin/wb-icon b/bin/wb-icon
index 9c29c60..b8f91cc 100755
--- a/bin/wb-icon
+++ b/bin/wb-icon
@@ -10,7 +10,6 @@
 #
 #     wb-icon volume     # reads wpctl, prints the matching icon
 #     wb-icon mic
-#     wb-icon idle <activated|deactivated>
 #     wb-icon --selftest # every name this bar asks for must resolve
 #
 # Icons keep their own colours: this desktop's icon theme draws them with
@@ -44,10 +43,6 @@ ICONS = {
         "muted": "microphone-sensitivity-muted",
         "on": "audio-input-microphone",
     },
-    "idle": {
-        "activated": "x-office-presentation",
-        "deactivated": "preferences-desktop-screensaver",
-    },
 }
 
 
@@ -116,9 +111,18 @@ def selftest():
     ]
     clock_icons = ["x-office-calendar", "clock"]
 
+    # Presentation mode is a custom module: statusctl emits the state as a
+    # class and modules.css picks the icon, so these names appear nowhere in
+    # this file. They are still the bar's icons, so they are checked here.
+    presentation_icons = [
+        "preferences-desktop-screensaver",  # off
+        "x-office-presentation",            # on
+        "dialog-warning",                   # no state file
+    ]
+
     names = sorted(
         {n for group in ICONS.values() for n in group.values()}
-        | set(workspace_icons) | set(clock_icons)
+        | set(workspace_icons) | set(clock_icons) | set(presentation_icons)
     )
     missing = [n for n in names if not lookup(n)]
     for n in names:
@@ -156,13 +160,6 @@ def main(argv):
         label = "muted" if state == "muted" else f"{pct}%"
         return emit(ICONS["mic"][state], f"Microphone: {label}")
 
-    if what == "idle":
-        state = argv[2] if len(argv) > 2 else "deactivated"
-        state = state if state in ICONS["idle"] else "deactivated"
-        on = state == "activated"
-        return emit(ICONS["idle"][state],
-                    f"Presentation mode: {'on' if on else 'off'}")
-
     print(f"wb-icon: unknown subject {what!r}", file=sys.stderr)
     return 2
 
diff --git a/bin/wb-idle b/bin/wb-idle
deleted file mode 100755
index 05c4a8c..0000000
--- a/bin/wb-idle
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/usr/bin/env bash
-# Presentation mode: keep the screen awake, and say so with a themed icon.
-# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
-# Licensed under the GNU General Public License v2 only.
-#
-# waybar's own idle_inhibitor module draws its state with format-icons, which
-# is text. This drives the same idea through hypridle and reports the state as
-# an icon path for an `image` module instead.
-#
-#     wb-idle status   # print "$path\n$tooltip" for the image module
-#     wb-idle toggle   # flip the inhibitor, then refresh the module
-#
-# The inhibitor is hypridle's own pause, so nothing else has to be running.
-set -euo pipefail
-
-state_file="${XDG_RUNTIME_DIR:-/tmp}/wb-idle.state"
-
-active() { [[ -f "$state_file" ]]; }
-
-case "${1:-status}" in
-toggle)
-	if active; then
-		rm -f "$state_file"
-		# Resume idling. Guarded: hypridle may not be running, and that is
-		# not an error worth failing a click over.
-		pkill -USR2 -x hypridle 2>/dev/null || true
-	else
-		touch "$state_file"
-		pkill -USR1 -x hypridle 2>/dev/null || true
-	fi
-	# Refresh the module now rather than waiting for its interval.
-	pkill -RTMIN+9 -x waybar 2>/dev/null || true
-	;;
-status)
-	if active; then
-		wb-icon idle activated
-	else
-		wb-icon idle deactivated
-	fi
-	;;
-*)
-	echo "usage: wb-idle <status|toggle>" >&2
-	exit 2
-	;;
-esac
diff --git a/config.jsonc b/config.jsonc
index 0c9dbc6..a7c5ff9 100644
--- a/config.jsonc
+++ b/config.jsonc
@@ -1,49 +1,76 @@
-// waybar-theme-udt: the bar on DP-3.
+// waybar-theme-udt: two bars on DP-3.
 // Copyright (C) 2026 Danilo M. <danix@danix.xyz>
 // Licensed under the GNU General Public License v2 only.
 //
+// A top-level array is how waybar takes more than one bar. Both bars are one
+// process reading one stylesheet, so the pills stay consistent between them.
+//
+// DP-3 is rotated, so the bar is 1080px rather than 1920: one bar holding
+// everything was too crowded at that width. Status lives on top, the desktop
+// (workspaces and open windows) along the bottom.
+//
 // One file per module, included explicitly: wildcard `include` has been broken
 // since waybar v0.14.0, so every module file has to be listed by name.
-{
-	"include": [
-		"$HOME/.config/waybar-udt/modules/image/launcher.jsonc",
-		"$HOME/.config/waybar-udt/modules/clock.jsonc",
-		"$HOME/.config/waybar-udt/modules/hyprland/workspaces.jsonc",
-		"$HOME/.config/waybar-udt/modules/custom/vmdot.jsonc",
-		"$HOME/.config/waybar-udt/modules/extras/taskbar.jsonc",
-		"$HOME/.config/waybar-udt/modules/custom/privacy_dots.jsonc",
-		"$HOME/.config/waybar-udt/modules/image/volume.jsonc",
-		"$HOME/.config/waybar-udt/modules/extras/tray.jsonc",
-		"$HOME/.config/waybar-udt/modules/image/idle_inhibitor.jsonc",
-		"$HOME/.config/waybar-udt/modules/image/language.jsonc",
-	],
+[
+	{
+		"include": [
+			"$HOME/.config/waybar-udt/modules/clock.jsonc",
+			"$HOME/.config/waybar-udt/modules/custom/vmdot.jsonc",
+			"$HOME/.config/waybar-udt/modules/image/launcher.jsonc",
+			"$HOME/.config/waybar-udt/modules/custom/privacy_dots.jsonc",
+			"$HOME/.config/waybar-udt/modules/image/volume.jsonc",
+			"$HOME/.config/waybar-udt/modules/extras/tray.jsonc",
+			"$HOME/.config/waybar-udt/modules/custom/presentation.jsonc",
+			"$HOME/.config/waybar-udt/modules/image/language.jsonc",
+		],
+
+		"modules-left": [
+			"clock#date",
+			"clock#time",
+			"custom/vmdot"
+		],
+		"modules-center": [
+			"image#launcher"
+		],
+		"modules-right": [
+			"custom/privacy_dots",
+			"group/volume",
+			"tray",
+			"custom/presentation",
+			"image#lang"
+		],
+
+		"layer": "top",
+		"output": "DP-3",
+		"position": "top",
+		"height": 0,
+		"width": 0,
+		"margin": 0,
+		"spacing": 0,
+		"mode": "dock",
+		"reload_style_on_change": true
+	},
+	{
+		"include": [
+			"$HOME/.config/waybar-udt/modules/hyprland/workspaces.jsonc",
+			"$HOME/.config/waybar-udt/modules/extras/taskbar.jsonc",
+		],
 
-	// Clusters, not a continuous strip: the stylesheet welds neighbours
-	// together and leaves gaps between groups.
-	"modules-left": [
-		"image#launcher",
-		"clock#date",
-		"clock#time",
-		"hyprland/workspaces",
-		"custom/vmdot"
-	],
-	"modules-center": [
-		"wlr/taskbar"
-	],
-	"modules-right": [
-		"custom/privacy_dots",
-		"group/volume",
-		"tray",
-		"image#idle",
-		"image#lang"
-	],
+		"modules-left": [
+			"hyprland/workspaces"
+		],
+		"modules-right": [
+			"wlr/taskbar"
+		],
 
-	"layer": "top",
-	"output": "DP-3",
-	"height": 0,
-	"width": 0,
-	"margin": 0,
-	"spacing": 0,
-	"mode": "dock",
-	"reload_style_on_change": true
-}
+		"layer": "top",
+		"output": "DP-3",
+		"position": "bottom",
+		"height": 0,
+		"width": 0,
+		"margin": 0,
+		"spacing": 0,
+		"mode": "dock",
+		"reload_style_on_change": true
+	}
+]
diff --git a/install.sh b/install.sh
index 2769b26..ad75744 100755
--- a/install.sh
+++ b/install.sh
@@ -86,9 +86,9 @@ ln -sfn "$repo/config.jsonc" "$target/config.jsonc"
 for f in modules/clock.jsonc \
          modules/hyprland/workspaces.jsonc \
          modules/custom/vmdot.jsonc modules/custom/privacy_dots.jsonc \
+         modules/custom/presentation.jsonc \
          modules/extras/taskbar.jsonc modules/extras/tray.jsonc \
-         modules/image/volume.jsonc modules/image/idle_inhibitor.jsonc \
-         modules/image/language.jsonc; do
+         modules/image/volume.jsonc modules/image/language.jsonc; do
     ln -sfn "$repo/$f" "$target/$f"
 done
 
@@ -136,7 +136,6 @@ for s in vms_dots.sh privacy_dots.sh; do
     ln -sfn "$repo/bin/$s" "$HOME/bin/$s"
 done
 ln -sfn "$repo/bin/wb-icon" "$HOME/bin/wb-icon"
-ln -sfn "$repo/bin/wb-idle" "$HOME/bin/wb-idle"
 ln -sfn "$repo/bin/wb-lang" "$HOME/bin/wb-lang"
 
 # ----------------------------------------------------------------- checks --
diff --git a/modules/custom/presentation.jsonc b/modules/custom/presentation.jsonc
new file mode 100644
index 0000000..3843cb5
--- /dev/null
+++ b/modules/custom/presentation.jsonc
@@ -0,0 +1,28 @@
+// Presentation mode, the same module the DP-1 bar runs.
+//
+// `statusctl presentation watch` streams waybar JSON on every change: it
+// already emits an empty text and a class of activated, deactivated or down,
+// so the icon is chosen in CSS from that class and no format is needed here.
+// Dropping format-icons is the whole difference from the DP-1 copy, which
+// draws the same two states as Nerd Font glyphs.
+//
+// `down` means the state file is missing, which is not the same as off: the
+// mode cannot be read at all. It gets its own icon rather than borrowing the
+// off one, so a broken watcher does not read as a working bar.
+//
+// statusctl talks to files under XDG_RUNTIME_DIR rather than to quickshell,
+// so this keeps working while the shell is down.
+// The format is a single space, and it has to be something. It defaults to
+// "{text}", statusctl emits an empty text, and waybar draws no widget at all
+// for a custom module whose formatted output is empty: not an empty pill, no
+// pill. A space gives the label real content to be allocated for, shows
+// nothing itself, and leaves the icon to the CSS background.
+{
+	"custom/presentation": {
+		"exec": "$HOME/bin/statusctl presentation watch",
+		"return-type": "json",
+		"on-click": "$HOME/bin/statusctl presentation toggle",
+		"format": " ",
+		"tooltip": true
+	}
+}
diff --git a/modules/image/idle_inhibitor.jsonc b/modules/image/idle_inhibitor.jsonc
deleted file mode 100644
index e026be8..0000000
--- a/modules/image/idle_inhibitor.jsonc
+++ /dev/null
@@ -1,15 +0,0 @@
-// Presentation mode.
-//
-// waybar's own idle_inhibitor module draws its state with format-icons, which
-// is text, so this is an `image` module driving the same inhibitor through
-// hyprland. The state lives in a file because the icon has to be resolved by
-// a separate process from the one that toggles it.
-{
-	"image#idle": {
-		"exec": "$HOME/bin/wb-idle status",
-		"size": 22,
-		"interval": 5,
-		"signal": 9,
-		"on-click": "$HOME/bin/wb-idle toggle"
-	}
-}
diff --git a/styles/modules.css b/styles/modules.css
index 9cc3f5e..4d3d38e 100644
--- a/styles/modules.css
+++ b/styles/modules.css
@@ -174,7 +174,29 @@
 	border-radius: 8px;
 }
 
-#image.idle {
+/* Presentation mode. statusctl emits the state as a class and an empty text,
+ * so the icon is chosen here rather than by a format string.
+ *
+ * `down` is not `off`: the state file is missing, so the mode cannot be read
+ * at all. It draws a warning rather than the off icon, because a watcher that
+ * has died should not look like a mode that is simply not on. */
+#custom-presentation {
+	background-repeat: no-repeat;
+	background-position: center;
+	background-size: 18px 18px;
 	padding: 2px 10px;
 	min-width: 22px;
+	min-height: 18px;
+}
+
+#custom-presentation.deactivated {
+	background-image: url("@ICONS@/categories/22/preferences-desktop-screensaver.svg");
+}
+
+#custom-presentation.activated {
+	background-image: url("@ICONS@/mimetypes/22/x-office-presentation.svg");
+}
+
+#custom-presentation.down {
+	background-image: url("@ICONS@/status/22/dialog-warning.svg");
 }
diff --git a/styles/pills.css b/styles/pills.css
index 515f053..40c6629 100644
--- a/styles/pills.css
+++ b/styles/pills.css
@@ -21,7 +21,7 @@
 #custom-privacy_dots,
 #volume,
 #tray,
-#image.idle,
+#custom-presentation,
 #image.lang {
 	background: @main-bg;
 	color: @main-fg;
@@ -40,7 +40,7 @@
 #custom-privacy_dots:hover,
 #volume:hover,
 #tray:hover,
-#image.idle:hover,
+#custom-presentation:hover,
 #image.lang:hover {
 	background: @hover-bg;
 	color: @hover-fg;
@@ -53,15 +53,11 @@
  * pill of each, so adding a module to a cluster means editing one rule.
  */
 
-/* Left: launcher | date time | workspaces | vm dots */
-#image.launcher {
-	margin-left: 6px;
-	margin-right: 6px;
-}
-
+/* Top bar, left: date time | vm dots */
 #clock.date {
 	border-radius: 14px 0 0 14px;
 	padding-right: 8px;
+	margin-left: 6px;
 }
 
 #clock.time {
@@ -70,9 +66,16 @@
 	margin-right: 6px;
 }
 
+/* Top bar, centre: the launcher stands alone. */
+#image.launcher {
+	margin-left: 6px;
+	margin-right: 6px;
+}
+
+/* Bottom bar, left: the workspace strip. */
 #workspaces {
 	padding: 2px 6px;
-	margin-right: 6px;
+	margin-left: 6px;
 }
 
 /* Right: privacy | volume | tray | presentation | language */
@@ -88,7 +91,7 @@
 	margin-right: 6px;
 }
 
-#image.idle {
+#custom-presentation {
 	margin-right: 6px;
 }
 
@@ -96,7 +99,8 @@
 	margin-right: 6px;
 }
 
-/* Center: the taskbar is one pill holding a row of buttons. */
+/* Bottom bar, right: the taskbar is one pill holding a row of buttons. */
 #taskbar {
 	padding: 2px 6px;
+	margin-right: 6px;
 }