What type of changes do you want to make?
What version of FileMaker do you have?
I have Version 12.0V1
I want to change the shading of the round buttons. They are currently represented by a black shaded circle when an option is selected and by a blank space when not selected.
I have somehow previously managed to change this so that there is a black circular line surrounding these. This makes it more obvious to the user that there are different options to choose from.
Please download and install the free 12.02 updater. It fixes a number of bugs.
The first does not look like the default settings for a FileMaker field formatted for radio buttons. I'd check line weight and line color as it appears this property has been set to either 0 width or transparent color.