Property colour

Tower material may visibly change according to its extraordinary property. Use familiar visual language when useful:

• Fire → orange / red / hot white.
• Cold → pale blue / cyan.
• Poison / corrosion → green.
• Electrical → yellow / white.

The game does NOT require visual originality at the expense of clarity.

COLOUR COMMUNICATES PROPERTY. SILHOUETTE COMMUNICATES FUNCTION. DETAIL COMMUNICATES ORIGIN.