Some time ago I bought a pseudo-neon LED sign from YellowPop (https://www.yellowpop.com/) and it came with a 2.4ghz remote (https://www.yellowpop.com/products/wireless-dimmer-control). At the time I dug in and somehow figured out it uses something akin to the FUT020 protocol, although the exact commands were different. I've managed well enough with that for doing on/off via cron:

# Off
0 18 * * * /opt/homebrew/bin/http --ignore-stdin http://10.0.1.98/gateways/Eric command=set_white > /dev/null
# On
40 0 7 * * * /opt/homebrew/bin/http --ignore-stdin http://10.0.1.98/gateways/Eric command=next_mode > /dev/null 

After upgrading more recently and seeing the new UI, I saw the sniffer and decided to take a moment to actually capture the various buttons:

NOTE: Device ID: 1532 = 0x5FC

I also took a swing as the basics of on/off/brightness, based heavily on the FUT020. I wanted to open a PR for your consideration, and to make it available to others. Please let me know what you think.

Also, let me know if there is a command to correct formatting, I'm concerned I may have some parts that are wrong.