fix: restore message widget, fullscreen power menu, and emoji grid

Three regressions from collapsing five theme systems into three layouts.

The layouts hardcoded `children`, which silently dropped any -mesg a script
passed. rofipass lost its keybinding cheatsheet and the power menu lost its
uptime line. list.rasi now lists the message widget; rofi hides it when there
is no message, so it costs nothing when unused.

The power menu was never a small menu. It is a deliberate fullscreen prompt
with a greeting, an avatar and one row of four large glyphs, and menu.rasi
flattened all of it. It gets its own layout, the one place where a prompt earns
its keep. The glyphs are drawn in Inconsolata Nerd Font Mono, which was
verified to contain all four; the old theme asked for `feather`, which contains
none of them and was relying on fallback.

The emoji picker is a dense grid of glyphs, not a list, and wasted most of a
single-column window. It gets grid.rasi, sized near the launcher's icons.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01G6aeE37K4GHBsaM51yLTTq

3 files changed, 143 insertions, 1 deletions

diff --git a/rofi/udt/grid.rasi b/rofi/udt/grid.rasi
new file mode 100644
index 0000000..c4ec128
--- /dev/null
+++ b/rofi/udt/grid.rasi
@@ -0,0 +1,44 @@
+/*
+ * udt grid layout: a searchable grid for dense, glyph-like entries.
+ * For the emoji picker, where a single column wastes most of the window.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * Licensed under the GNU General Public License v2 only.
+ */
+
+@import "common.rasi"
+
+window {
+    width:    680px;
+    anchor:   center;
+    location: center;
+}
+
+mainbox {
+    children: [ inputbar, message, listview ];
+}
+
+listview {
+    columns: 5;
+    lines:   6;
+    spacing: 6px;
+    fixed-height: false;
+}
+
+/* Entries are glyphs rather than prose, so they are centered in their cell
+ * instead of left-aligned, and scaled up to roughly the launcher's icon size.
+ *
+ * rofi's emoji mode puts the glyph and its name on the same row, so this font
+ * applies to both. Noto Color Emoji carries no Latin glyphs, so fontconfig
+ * falls back for the name text. If the names end up looking wrong, the fix is
+ * to drop this font line and raise the element padding instead. */
+element {
+    padding:       10px;
+    spacing:       0;
+    border-radius: 6px;
+}
+
+element-text {
+    font:             "Noto Color Emoji 20";
+    horizontal-align: 0.5;
+    vertical-align:   0.5;
+}
diff --git a/rofi/udt/list.rasi b/rofi/udt/list.rasi
index 835c13e..6812571 100644
--- a/rofi/udt/list.rasi
+++ b/rofi/udt/list.rasi
@@ -13,8 +13,12 @@ window {
     location: center;
 }
 
+/* `message` must be listed, or a `-mesg` passed by a script is silently
+ * dropped. rofi hides the widget when there is no message, so listing it
+ * costs nothing when unused. rofipass relies on this for its keybinding
+ * cheatsheet. */
 mainbox {
-    children: [ inputbar, listview ];
+    children: [ inputbar, message, listview ];
 }
 
 listview {
diff --git a/rofi/udt/powermenu.rasi b/rofi/udt/powermenu.rasi
new file mode 100644
index 0000000..6660e9f
--- /dev/null
+++ b/rofi/udt/powermenu.rasi
@@ -0,0 +1,94 @@
+/*
+ * udt powermenu layout: a fullscreen overlay with a single row of big icons.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * Licensed under the GNU General Public License v2 only.
+ *
+ * The power menu is not a small menu. It is a deliberate, hard-to-mistake
+ * fullscreen prompt, and the script feeds it a greeting, a uptime message and
+ * a user avatar. All three are rendered here.
+ */
+
+@import "common.rasi"
+
+window {
+    fullscreen:       true;
+    background-color: @base;
+    border:           0;
+    border-radius:    0;
+    padding:          0;
+}
+
+mainbox {
+    children: [ dummy, userimage, inputbar, listview, message, dummy ];
+    spacing:  24px;
+    padding:  60px;
+}
+
+/* Flexible spacers above and below push the content block to the middle. */
+dummy {
+    expand: true;
+}
+
+/* The avatar. `both` fills the box, the radius makes it a circle. */
+userimage {
+    expand:           false;
+    width:            120px;
+    height:           120px;
+    horizontal-align: 0.5;
+    background-image: url("~/.user-icon.jpg", both);
+    border:           2px;
+    border-color:     @accent;
+    border-radius:    100%;
+}
+
+/* This layout is the one place a prompt earns its keep: it carries the
+ * script's greeting, which is the human cue for a destructive menu. */
+inputbar {
+    expand:           false;
+    background-color: transparent;
+    padding:          0;
+    children:         [ prompt ];
+}
+
+prompt {
+    font:             "Noto Sans Bold 28";
+    text-color:       @text;
+    horizontal-align: 0.5;
+}
+
+/* Four options in one row: shutdown, reboot, sleep, logout. */
+listview {
+    expand:        false;
+    columns:       4;
+    lines:         1;
+    fixed-height:  true;
+    fixed-columns: true;
+    spacing:       24px;
+}
+
+element {
+    padding:       40px;
+    border-radius: 12px;
+}
+
+/* The entries are single glyphs from a Nerd Font, so they are sized large and
+ * centered rather than laid out as text. */
+element-text {
+    font:             "Inconsolata Nerd Font Mono 42";
+    horizontal-align: 0.5;
+    vertical-align:   0.5;
+    text-color:       inherit;
+}
+
+/* The uptime line the script passes with -mesg. */
+message {
+    expand:           false;
+    background-color: transparent;
+    padding:          0;
+}
+
+textbox {
+    font:             "Noto Sans 12";
+    text-color:       @subtext0;
+    horizontal-align: 0.5;
+}