How to remove a white frame?
You can create a custom theme for the buttons (or any UI elements).
Where? I cannot find.
At the top, click on the second icon from the right (the icon with the colored horizontal bars). Then you can customize the style boxes.
You want to start with a StyleBoxFlat. Then you can customize it from there.
I understood. It is necessary to fill all fields.
IGA22 It is necessary to fill all fields.
Is that a question? Customizing the Disabled and Focus styles is only needed if those button states will occur in running the project.
