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7.10 introduced a new UI feature. Instead of separate options you can now toggle between states for color options. See below for an example:

If you receive an error from your child theme related to an undefined method, please check your custom template and replace:

<?php Avada()->layout->add_style( 'content_style' ); ?>

With the new code of:

style="<?php esc_attr_e( apply_filters( 'awb_content_tag_style', '' ) ); ?>"

After updating, ensure you have cleared your browser cache and any plugin cache you have running.  If using critical CSS, also regenerate the critical CSS.

Go to Global Options > Advanced – Features and ensure that Legacy Widget Areas is set to On.

Post Avada v7.7, Emails are managed via the notification tab in the Avada form options, Screenshot here. You can add a new notification which can send emails to your desired ID along with automated replies