Add color variant for cockatiel #767 (#811)

* Add brown color variant for cockatiel

* Fix formatting of colors array for cockatiel

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Co-authored-by: Anthony Shaw <anthony.p.shaw@gmail.com>

Author: MULTidll

media/cockatiel/brown_icon.png

@@ -4,7 +4,7 @@ import { States } from '../states';
 
 export class Cockatiel extends BasePetType {
     label = 'cockatiel';
-    static possibleColors = [PetColor.gray];
+    static possibleColors = [PetColor.gray, PetColor.brown];
     sequence = {
         startingState: States.sitIdle,
         sequenceStates: [

media/cockatiel/brown_idle_8fps.gif

@@ -42,7 +42,7 @@ const pets: { [key: string]: { colors: string[]; states: string[] } } = {
         states: ['idle', 'run', 'swipe', 'walk', 'walk_fast', 'with_ball'],
     },
     cockatiel: {
-        colors: ['gray'],
+        colors: ['gray', 'brown'],
         states: ['idle', 'run', 'swipe', 'walk', 'walk_fast', 'with_ball'],
     },
     crab: {