Disappearing included / excluded labels for recipient lists in CiviMail reports

[ufundo]

Have noticed an issue with Shoreditch CSS on top of my bootstrap-based Drupal theme. The labels seem to end up being white text on white background, and they are also centred rather than left aligned, which is weird.

I appreciate this may be caused by conflict with styles in my Drupal theme, but shouldn't Shoreditch "override" these to ensure these labels are visible?

Sorry if this is an unreasonable expectation ─ I definitely don't understand that well how the civicrm-drupal css is meant to interact/fall out!

Screenshot:

Shoreditch 1.0.0-beta.1
CiviCRM 5.20.3
Drupal 7.72