Mask requires the CSS mix blend mode property to achieve an appropriate Mask Button effect. It will be applied at the text.
Learn more about CSS mix blend mode property here.
Transition duration
There are several groups available to style Mask Button: Margin, Padding, Background, Border and Typography. Mask styles including border, dimensions and background have to be set at the Mask group. If you need to apply additional styles, you can do so at the Settings Tab.