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+overlay
+=======
+
+.. dfhack-tool::
+    :summary: Provide an on-screen clickable DFHack launcher button.
+    :tags: dfhack interface
+
+This tool places a small button in the lower left corner of the screen that you
+can click to run DFHack commands with `gui/launcher`.
+
+If you would rather always run `gui/launcher` with the hotkeys, or just don't
+want the DFHack button on-screen, just disable the plugin with
+``disable overlay``.
+
+Usage
+-----
+
+::
+
+    enable overlay