The blue schedule color indicates what about the available slots?

The blue schedule color signifies that at least one regular opening has been used, indicating that there are some slots that remain available for scheduling. This visual cue is essential for clinicians and administrative staff as it helps them quickly assess the status of the scheduling grid. The blue color does not mean that all appointments for that time have been filled, nor does it indicate that no slots are available. Instead, it highlights that while some regular openings are occupied, there are still opportunities for additional appointments. This allows for efficient scheduling and helps ensure that patient needs are met without leaving slots completely unfilled.