Related Clues:

• Slight tint
• Touch (of colour?)
• Slight colouring
• Trace of colour
• Little bit of colour
• Small quantity of (differing) colour
• Feature of some lenses
• Just the slightest amount
• Application for windows?
• Windshield application
• Teetotaller hides at home in slight shade
• Just a trace
• Color on a windshield
• Color TV knob of old
• Faint hue