Ticket Purchase widget edit checkbox

I am using the ticket purchase widget for 1 item.  However, the check box is not noticable cuz it's blend it to the same color of the form.  No one can see the box to check it.  How do I make this check box with black lines around it?  Or how do I make the button a different color so that it stands out from the background color of the form?

In addition, you would need to add the custom CSS inside the Ticket Purchase widget.

Select the wand icon in your ticket purchase widget to open the widget settings then Custom CSS

Please give it a try and let us know if this fits your requirements.