Thicken compass arrow icon for better visibility.

src/FlightMap/Images/compassInstrumentArrow.svg

@@ -3,7 +3,7 @@
 <svg version="1.1" id="Layer_3" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
 	 viewBox="0 0 288 288" style="enable-background:new 0 0 288 288;" xml:space="preserve">
 <style type="text/css">
-	.st0{fill:#231F20;stroke:#D23528;stroke-width:4;stroke-linecap:round;stroke-linejoin:round;}
+	.st0{fill:#231F20;stroke:#D23528;stroke-width:6;stroke-linecap:round;stroke-linejoin:round;}
 </style>
 <polygon class="st0" points="144,173.6 137.1,240.2 76.9,252 144,36 144,36 211,252 151,240.2 "/>
 </svg>