I need to use kodi for an old television and I saw that kodi 9 does work with AV, but without color
I'm thinking of porting that driver into the new release of libreelec 12. Anyway, what kind of standard does your TV use? Pal or NTSC, from what I have studied the lack of color may depend on the fact that the driver uses one standard, and the television accepts another. However, I haven't yet understood how to change the behavior (i.e. make the driver use one standard rather than another)
It is possible to enable other IR protocols to map another remote control?
Technically yes, but keep in mind that turning the box on via remote control only works with the nec/necx protocol(which is why the others are disabled). This is because it is implemented in a proprietary binary that cannot be modified.