yesterday my OC200 arrived. It came with latest firmware 1.0.3 Build 20181016 Rel.33052. Unfortunately, this version of Omada Controller running on OC200 re-introduces the transparency bug for logo images on the portal page I reported for EAP Controller v2.5.3 at December, 2017 to tom.wu already. It was fixed in v2.7.0 already and now re-appeared. See this screenshot:
As you can see, the logo has black background instead of a transparent background as in the original PNG image.
I see no reason why a logo should be restricted to a 1:1 aspect ratio.
Please consider to remove the cropping which was introduced in v2.5.x. At least, cropping/aspect ratio enforcement could be made optional for the inexperienced user if OC200 and Omada Controller are supposed to also target the SOHO market.