Documentation fixes and the multi-color text parsing will be included in OH5.1 
After updating to OH 5.1 there are doubled entries for adding a device or app:
mqtt:awtrixclock / mqtt:awtrix-clock
mqtt:awtrixapp / mqtt:awtrix-app
Things created before OH 5.1 (think it was the community edition) have been created without the hyphen. In the addon store there is just one Awtrix addon.
Which one is the current one/should I choose for creating new things?
Please use the binding from the official addon repository. Unfortunately the thing ids I was using in the community version were not compliant with the requirements for official bindings. So make sure to remove the old binding (probably you have a jar in your addons folder if it is still there after an upgrade) and create new things with the official binding.
Thanks for clarification. It looks like the current one is the one with the hyphen and translated description. I will re create the things.
I could not find an old jar in the addons folder but it looks like it is somehow still installed:
I will need to have a look in the OH console if I can get rid of the old one there…