Add: Sprite centre and crosshair toggles on sprite aligner.

src/lang/english.txt

@@ -3325,6 +3325,13 @@ STR_SPRITE_ALIGNER_PREVIOUS_BUTTON                              :{BLACK}Previous
 STR_SPRITE_ALIGNER_PREVIOUS_TOOLTIP                             :{BLACK}Proceed to the previous normal sprite, skipping any pseudo/recolour/font sprites and wrapping around from the first sprite to the last
 STR_SPRITE_ALIGNER_SPRITE_TOOLTIP                               :{BLACK}Representation of the currently selected sprite. The alignment is ignored when drawing this sprite
 STR_SPRITE_ALIGNER_MOVE_TOOLTIP                                 :{BLACK}Move the sprite around, changing the X and Y offsets. Ctrl+Click to move the sprite eight units at a time
+
+###length 2
+STR_SPRITE_ALIGNER_CENTRE_OFFSET                                :{BLACK}Offset centred
+STR_SPRITE_ALIGNER_CENTRE_SPRITE                                :{BLACK}Sprite centred
+
+STR_SPRITE_ALIGNER_CROSSHAIR                                    :{BLACK}Crosshair
+
 STR_SPRITE_ALIGNER_RESET_BUTTON                                 :{BLACK}Reset relative
 STR_SPRITE_ALIGNER_RESET_TOOLTIP                                :{BLACK}Reset the current relative offsets
 STR_SPRITE_ALIGNER_OFFSETS_ABS                                  :{BLACK}X offset: {NUM}, Y offset: {NUM} (Absolute)