more shrink, and a + t2

README.md

@@ -25,16 +25,23 @@ list:
 
 ```css
 #board td .board-task-list.board-task-list-compact {
-    max-height: calc(100vh - 120px) !important;
+    max-height: calc(100vh - 170px) !important;
 }
 ```
 
-The `120px` reserves room for the page header, the board column header, the horizontal
+The `170px` reserves room for the page header, the board column header, the horizontal
 scrollbar, and a little breathing space. A fixed-pixel budget is more reliable than a
 proportional value because that chrome is a fixed height regardless of screen size.
 
-It changes nothing else: no data, no JavaScript, no database migration. The override only
-applies while columns are collapsed (when core adds the `board-task-list-compact` class).
+The override only applies while columns are collapsed (when core adds the
+`board-task-list-compact` class). It changes no data and runs no database migration.
+
+## Menu labels
+
+So it is obvious the collapsed behaviour comes from this plugin and not from core, a
+small script (via `template:layout:js`) appends a `+` to the two gear-menu items, so they
+read "Collapse vertically+" and "Expand vertically+". It only edits the rendered link
+text, so it works in any locale.
 
 ## Requirements
 
@@ -48,7 +55,7 @@ from the folder name). Reload the board; no build step, no configuration.
 
 ## Tuning
 
-Edit the single `120px` value in `Asset/css/shrink-vertically.css`. Increase it if the
+Edit the single `170px` value in `Asset/css/shrink-vertically.css`. Increase it if the
 scrollbar is still clipped (for example with a taller theme header); decrease it to make
 the collapsed columns taller.