Need General Android User Manual

Not as intuitive as I had hoped for, even the Wizard needs a wizard.
Problems I run into include:
When I enter a color in Hex, the app appears to change the entry. When I enter ff0000 for red it becomes something else,
Setting up a device like a dimmer switch should have a step-by-step guide for those who have never used this app. Was hoping paying for premium would have opened some doors…
I could search the forum all day on the off chance someone asked about each function or process, but it would be better if it were aggregated into a “how-to” on the web.