feat(rofi): fullscreen two-button layout for the screenshot menu

The screenshot menu (Mod+Shift+S) borrowed menu.rasi, a small list
box, so its two options were small glyphs in a narrow column.
screenshot.rasi gives each option half the monitor on the scrim,
centred vertically by spacers because rofi sizes a row by its text.

rofi cannot size a font by percentage, so the calling script passes
the glyph size with -theme-str, derived from the focused monitor and
aware of rotated outputs; the size in the theme is only a fallback.
install.sh links the new file with the other layouts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2 files changed, 55 insertions, 1 deletions

diff --git a/install.sh b/install.sh
index 8a5755d..36903ea 100755
--- a/install.sh
+++ b/install.sh
@@ -22,7 +22,7 @@ fi
 
 # Theme files are symlinked individually; accent.rasi is NOT, it points at the
 # generated file in the wal cache instead.
-for f in palette.rasi common.rasi menu.rasi list.rasi grid.rasi powermenu.rasi confirm.rasi; do
+for f in palette.rasi common.rasi menu.rasi list.rasi grid.rasi powermenu.rasi confirm.rasi screenshot.rasi; do
     ln -sfn "$repo/rofi/udt/$f" "$target/$f"
 done
 
diff --git a/rofi/udt/screenshot.rasi b/rofi/udt/screenshot.rasi
new file mode 100644
index 0000000..0eff248
--- /dev/null
+++ b/rofi/udt/screenshot.rasi
@@ -0,0 +1,54 @@
+/*
+ * udt screenshot layout: two fullscreen buttons, whole screen or area.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * Licensed under the GNU General Public License v2 only.
+ *
+ * Each option takes half the monitor, so the choice is one glance and one
+ * click. Cells fill whatever monitor rofi opens on; the glyph size cannot be
+ * a percentage in rofi, so the script passes it with -theme-str, derived from
+ * the focused monitor's height. The font below is only the fallback.
+ */
+
+@import "common.rasi"
+
+/* Translucent like the power menu, so it reads as a layer over the session. */
+window {
+    fullscreen:       true;
+    background-color: @scrim;
+    border:           0;
+    border-radius:    0;
+    padding:          6%;
+}
+
+/* rofi sizes a row by its text, not by the space left, so spacers above and
+ * below centre the row instead of leaving it pinned to the top edge. */
+mainbox {
+    children: [ dummy, listview, dummy ];
+}
+
+dummy {
+    expand: true;
+}
+
+listview {
+    expand:        false;
+    columns:       2;
+    lines:         1;
+    fixed-height:  true;
+    fixed-columns: true;
+    flow:          horizontal;
+    spacing:       4%;
+}
+
+element {
+    padding:          80px 0px;
+    border-radius:    24px;
+    background-color: @surface0;
+}
+
+element-text {
+    font:             "Inconsolata Nerd Font Mono 160";
+    horizontal-align: 0.5;
+    vertical-align:   0.5;
+    text-color:       inherit;
+}