RE: Custom tile not working
Hi Becky,
That instruction was published on 04/01/2018 and needs to be updated, because it refers to the old UI.
In the new UI, all custom tiles have been merged into the black Custom Channel tile, and they are just options of drop down list, so the previous color settings no longer works.
There are two workarounds to solve it:
1. Update the icon(UCI) of your custom entity to make it to be distinguishable in the drop down list.


2. Go to Advanced Settings > Other settings > Feature switches, turn off the Updated customer journey designer option to switch the customer journey designer to the old.

However, the old UI might be deprecated in future release.
Regards,
Clofly