This RGB converter is based on this great project: TMS9929A RGB and Component adapter - A high resolution Component, RGB or SCART adapter for MSX and Colecovision.
It converts signals from a TMS9929 with correct colors to RGB.
See also this thread for more information.
Original author: Copyright 2016: Alexis Kotlowy 256byteram@gmail.com
Enhanced version: Copyright 2017: Gerhard Wiesinger ti99@wiesinger.com