Progress bar
Customize the default progress bar that shows up when respondents answer your Fillout form.
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 of the standard progress bar
Click
Theme
in the upper left area to open the Form designer. 
Click the
Primary
color picker to choose your desired color. 
How to add a multi-step progress bar
On the left-hand panel of your form, click
Progress bar
.
Click the progress bar field to customize it. This will open the right-hand panel where you can change its color, rename the current steps, and add new steps. You can add up to five steps.

Under Current page progress, choose which step each page should go into. Simply go to any page (except Cover and Ending) and match it to a step.
That's it!
Publish
your form and share the link. How to remove the progress bar
Click Settings in the top menu followed by
Form behavior
in the left side. Untoggle the Show progress bar
switch.