+* \draw_strategy partial|backingstore: when this is set to
+ "backingstore", the drawing code will force the use of an
+ intermediate surface, instead of just drawing changed regions on
+ screen. Note that "backingstore" is actually always enforced on
+ macOS and Wayland (default: partial).
+
+* \screen_limit true|false: determines whether the text width on screen is limited
+ (both fullscreen and normal view).
+
+* \screen_width <length>: sets the width of the text on screen if \screen_limit is true.