lets get croycroy tip: make sure all livery elements are visible before tweaking the value (how black the colour of a given element is)
loosely based on Croydon Bus Simulator (in Roblox)'s Custom Bus Operator livery maker order of elements: 1. Base colour 2. Stripe 1 (low-height) 3. Stripe 2 (just below the lower deck window) 4. Stripe 4 (semi-thin stroke above lower deck window) 5. Stripe 3 (between lower deck & upper deck windows)
