Guard and attack markers (shields and swords, up to eight each, right click removes); the world and the interface are copied opaque so glows keep their brightness

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

lang/en.lang

@@ -325,6 +325,7 @@ hint.tower_mana = Your magic towers have run out of mana.
 job.repair = Repairing a tower
 job.mend_bridge = Mending a bridge
 job.raise_wall = Raising a wall
+job.march = Marching to a sword
 job.attack_tower = Attacking a tower
 
 unit.jailer = Jailer
@@ -1092,15 +1093,19 @@ best.catapult.text = A wooden arm, a bucket of rocks and a knight with too much
 # orders
 tool.order_attack.label = Attack
 tool.order_attack.name = Attack!
-tool.order_attack.desc = Click an enemy or an enemy tower: all fighting creatures within 18 tiles go for it. Right click with an order tool cancels the guard orders.
+tool.order_attack.desc = Click an enemy or an enemy tower: all fighting creatures within 18 tiles go for it. Click open ground: a sword marker - the ready creatures share out over all swords and fight there. Right click on a marker removes it.
 tool.order_guard.label = Guard
 tool.order_guard.name = Guard this room
-tool.order_guard.desc = Click a room: up to three creatures nearby take positions there for two minutes and attack whatever comes into view. Right click cancels.
+tool.order_guard.desc = Click your own ground: a shield marker that three creatures hold and defend. Up to eight shields; right click on a shield removes it.
 hint.order_attack = Click an enemy or an enemy tower.
 hint.order_guard = Click one of your rooms (or your own floor).
 hint.order_nobody = No creature is free for that order.
 msg.order_attack = {0} creatures attack!
 msg.order_guard = {0} creatures take their positions.
+msg.mark_attack = A sword marks the spot: your ready creatures march there.
+msg.mark_guard = A shield marks the spot: three creatures will hold it.
+msg.mark_removed = Marker removed - its creatures are free again.
+hint.marks_full = Eight markers of that kind are the most. Remove one with a right click.
 msg.orders_cancelled = Guard orders cancelled.
 
 # creature overview