v2.3

Here's v2.3

New pieces:

• 12cm split/join "T" and "Y" pieces in open and open filled profiles
• 8cm split/join "R" pieces in open and open filled profiles (geometry needs some work)
• Wind Tunnel
• 16cm Wide Tunnel, Wide Slope, Wide Narrowing
• 4cm Start Finish Line pieces
• & associated wall/topper pieces

New materials:

• DPT Neon Stripe (orange, blue)
• DPT Wood (cherry, beech)
• DPT Wavy for Marbles (orange & blue)

Assets are now marked as such.

License is CC BY-SA 4.0.