Provide visual indicator for how to identify a bus

[emmaleengo]

When a person first joins the app, show them how to identify a bus on the welcome sheet (a visual would be helpful) - might need to create a custom graphic for this with labels to identify colors.

This can also be pulled up on the Bus Selection Page as a popup in case the user has a hard time remembering how to identify a bus.

[Gerzer]

This is a very good idea! Some people might not know where to look to find the bus ID number on a physical bus. Let’s try to roll this into a future 2.0 release.