Merge branch 'spriteFixes' into 'dev'

Minor sprite fixes.

See merge request !2326

game/overworld-plains/loc-bird/main.twee

@@ -429,7 +429,7 @@ You are inside a ruined tower, deep in the moor.
 	<<ind>><<link [[Sit by the rainwater pool|Bird Tower Rainwater Pool]]>><</link>>
 	<br>
 	<<if $syndromebird isnot 1>>
-		<<markicon>><<link [[Look out the tower (0:05)|Bird Tower Look]]>><<bird_pass 5>><</link>>
+		<<crimeicon "mark">><<link [[Look out the tower (0:05)|Bird Tower Look]]>><<bird_pass 5>><</link>>
 		<br>
 	<</if>>
 	<<if $bird.lock is 1>>