feat: add piece color to the stack

config.yaml

@@ -35,6 +35,9 @@ position:
   well: [280, 80]
   next-piece: [620, 160]
   spawn-piece: [-260, -60]
+  # multi player game screen
+  well-player-1: [80, 80]
+  well-player-2: [480, 80]
 
 engine:
   fps: 60
@@ -58,11 +61,12 @@ color:
   cursor: "#FFFFFF"
   # in game
   piece-1: "#1F37EC"
-  piece-2: "#3DBBFC"
+  piece-2: "#5BDB57"
   piece-3: "#FFFFFF"
+  piece-ghost: "#9BFCF0"
   piece-inner-border-1: "#1F37EC"
   piece-outer-border-1: "#000000"
-  well-1: "#9BFCF0"
-  well-border-1: "#000000"
-  stack-1: "#747474"
-  stack-border-1: "#000000"
+  well-1: "#000000"
+  well-border-1: "#9BFCF0"
+  well-2: "#9BFCF0"
+  well-border-2: "#000000"