@armartins thanks for your feedback! We definitely appreciate it. For some quick background here, the current AOD mode of Facer for Gear S3 is a dimmed version of the design to comply with fairly strict restrictions of Samsung on that device. Without going into too much detail, in order to maintain a decent battery life, we are required to keep the luminance of pixels under a certain threshold.
What we are going to do in the very near future is provide an option to use the designer made "dim" mode on the Gear S3 instead of a darkened version of the full-color design. The upside of that is that the AOD will be in full color, but it will in most cases be a much simplified version of the watch face.
The real solution will be to have our community of designers update their "dim" mode design to take full advantage of the Gear S3's AOD but this will take a bit of time as we have thousands of designs. We're working on it though!
Hope this helps!