+backend

+frontend empty

backend/color.go

@@ -0,0 +1,37 @@
+package main
+
+type Color int
+
+const (
+	Gray Color = iota
+	Black
+	Blue
+	Red
+	Yellow
+	Green
+	White
+	Magenta
+)
+
+func (c Color) String() string {
+	switch c {
+	case Gray:
+		return "gray"
+	case Black:
+		return "black"
+	case Blue:
+		return "blue"
+	case Red:
+		return "red"
+	case Yellow:
+		return "yellow"
+	case Green:
+		return "green"
+	case White:
+		return "white"
+	case Magenta:
+		return "magenta"
+	}
+
+	return "gray"
+}