Aquaplane border bug

[Alvarez81]

Hi, Aquaplane is a Spectrum game tha uses borders in some way, ZxPoly does not support borders in that way. Look the video, please.
Aquaplane.tzx.zip

https://www.youtube.com/watch?v=LboVmlenPFs

[Alvarez81]

This game uses a border effect to extend the game screen:
Correct image: