What is a progress bar?
A progress bar lets respondents know how much of the form have been completed and how much remains. By default, respondents will see a progress bar at top of the form.
How to change the color
ClickTheme to open the Form designer. Then, change the Primary color.

Changing the primary color will also update your button color. If you want your button to stay the same, adjust it directly in its settings. More info here.
Use a multi-step progress bar
1
Add a progress bar field
On the left-hand panel of your form, click 
Progress bar.
2
Customize your progress bar
Click the progress bar to customize it. This will open the right-hand panel where you can configure its settings.
Your progress bar will default to 3 steps. You can edit their names and

+ Add new steps if needed.3
Reference steps
Navigate to each page (except Cover and Ending) and choose which step they should go into in Current page progress.

Remove the progress bar
If you used a multi-step progress bar, you remove it in the right-hand panel. Either way, you can click form settings on the upper right area.
Form behavior and untoggle the Show progress bar switch.
