They’ve moved from using config files for hyperion.ng to using a database. That’s what isn’t working for you. Bad commit and a missing package. Didn’t show up without doing the full tear down.
Just run the following and you should be good to go. sudo apt-get install libqt5sql5-sqlite
Hypercon is for configuring Hyperion “classic”. Unfortunately it’s not clear from that link what software you installed on the Zero or how it was configured.
NG uses the webGUI only. And under its settings:
Configuration->Network Services->
Flatbuffers Server
Google Flatbuffers Receiver. Used for fast image transmission.
Protocol Buffers Server
The PROTO-Port of all Hyperion instances, used for picture streams (HyperionScreenCap, Kodi Addon, Android Hyperion Grabber, …)
They seem to be enabled by default. So perhaps it is the Zero that needs to be configured to listen to those ports broadcasting from the Vero4K?
Ah hang on, if you change the settings level to “expert” (spanner icon on the top right) then there will be:
Configuration->Network Services->Forwarder
It isn’t active by default, which is promising as it wasn’t working for you yet. Also you can set the IP address of the Zero there.
Obviously the ports will need to match on the Zero. If there is any issue you might need to install NG on the Zero too.
Yes the remote control section of the menu lets you set colours and effects. The TV screen icon at the top right is for the live preview, to be sure the grabbing is happening too.