You’re welcome :)

Just tested, and colors work if you use kMZ file format.

At least if I pick colors of waypoints in OM, export the waypoints and import them again, the color remains.

Just did some messing around in OM and it doesn’t look like it is supported (at the moment).

GPX waypoints have an atrribute called “symbol”, which can name a symbol or icon to display. It looks like this attribute can also, in theory, contain a color.

But it doesn’t get recognized on import into OM.

When setting the color of a waypoint in OM and exporting as GPX, the color info is stripped from the resulting file.

GPX specification : https://www.topografix.com/GPX/1/1/#type_wptType

Support for GPX in OM : https://github.com/organicmaps/organicmaps/pull/5166