You can set a custom global button style in Customizer that applies as the default button style in Beaver Builder layouts. You can override the default settings in any specific module that uses a button.
The custom global button settings are at Customize > General > Buttons. For Button style, change None to Custom, which opens the following button settings:
- Button text and background color
- Text style (font family, weight, size, line height)
- Button border style
These settings are identical to the Style tab for the Button module in Beaver Builder.