Another vote to have a “disable inline css” button in the admin. It would be pretty easy to implement, like so:
a couple steps for anyone who wants to do this:
1) around line 993, of mailchimp.php right after the line:
<tr><th colspan="2">Custom Styling</th></tr>
add this:
<tr class="mc-turned-on"><th><label for="mc_disable_css"><?php esc_html_e('Disable mailchimp inline CSS', 'mailchimp_i18n'); ?></label></th><td><span class="mc-pre-input"></span><input type="checkbox" name="mc_disable_css" id="mc_disable_css"<?php checked(get_option('mc_disable_css'), 'on'); ?> /></td></tr>
2) around line 525 of mailchimp.php add:
delete_option('mc_disable_css');
3) Around line 574 of mailchimp.php add:
update_option('mc_disable_css','off');
4) around line 652 of mailchimp.php add:
update_option('mc_disable_css', isset($_POST['mc_disable_css']) ? 'on' : 'off');
5) Finally in mailchimp_widget.php before the opening closing ?> php tag that is right before the opening <style> tag, which is around line 57, add this:
if (get_option('mc_disable_css')!='on'){
And then after the closing <style> tag add:
<?php } ?>
@mailchimp would be cool if you added this to your plugin!!!