Feature: possible place to true by default

[matheusgimenez]

Based on a support topic in WP.org:

https://wordpress.org/support/topic/default-true?replies=1

[LuwkasLima]

@matheusgimenez I guess the best approach here is to include an additional configuration option under Settings > Reveal Modal asking if you would like to "Set default option as: 'True'"

I would also consider replacing "True/False" by "ON/OFF"