Swaps yellow and green link colors, some other color improvements

src/main/java/de/tu_darmstadt/tk/SmartHomeNetworkSim/view/util/Utility.java

@@ -21,9 +21,9 @@ public class Utility {
 	 * This array is taken from <a href="https://stackoverflow.com/questions/2328339/how-to-generate-n-different-colors-for-any-natural-number-n">https://stackoverflow.com/questions/2328339/how-to-generate-n-different-colors-for-any-natural-number-n</a>
 	 */
 	public static final String[] indexcolors = new String[]{
-        "#000000", "#FFFF00", "#1CE6FF", "#FF34FF", "#FF4A46", "#008941", "#006FA6", "#A30059",
+        "#000000", "#7ED379", "#1CE6FF", "#FF34FF", "#FF4A46", "#008941", "#006FA6", "#A30059",
         "#FFDBE5", "#7A4900", "#0000A6", "#63FFAC", "#B79762", "#004D43", "#8FB0FF", "#997D87",
-        "#5A0007", "#809693", "#FEFFE6", "#1B4400", "#4FC601", "#3B5DFF", "#4A3B53", "#FF2F80",
+        "#5A0007", "#809693", "#012C58", "#1B4400", "#4FC601", "#3B5DFF", "#4A3B53", "#FF2F80",
         "#61615A", "#BA0900", "#6B7900", "#00C2A0", "#FFAA92", "#FF90C9", "#B903AA", "#D16100",
         "#DDEFFF", "#000035", "#7B4F4B", "#A1C299", "#300018", "#0AA6D8", "#013349", "#00846F",
         "#372101", "#FFB500", "#C2FFED", "#A079BF", "#CC0744", "#C0B9B2", "#C2FF99", "#001E09",
@@ -37,7 +37,7 @@ public class Utility {
         "#5B4534", "#FDE8DC", "#404E55", "#0089A3", "#CB7E98", "#A4E804", "#324E72", "#6A3A4C",
         "#83AB58", "#001C1E", "#D1F7CE", "#004B28", "#C8D0F6", "#A3A489", "#806C66", "#222800",
         "#BF5650", "#E83000", "#66796D", "#DA007C", "#FF1A59", "#8ADBB4", "#1E0200", "#5B4E51",
-        "#C895C5", "#320033", "#FF6832", "#66E1D3", "#CFCDAC", "#D0AC94", "#7ED379", "#012C58"
+        "#C895C5", "#320033", "#FF6832", "#66E1D3", "#CFCDAC", "#D0AC94", "#FFFF00", "#FEFFE6"
 	};
 	
 	/**