About This File
What's New in Version 1.1.1 See changelog
The tiles have been completely reworked by now.
You can find the source code here for the moment: X16_Code/tileengine.c at main · FlightControl-User/X16_Code (github.com). The code is written on the kickc compiler of Jesper Gravgaard: camelot / kickc · GitLab.