Appointment Type Colors on the Calendar
Every appointment type carries a color, and the calendar uses those colors to make the day readable at a glance. You choose the color when you create or edit the appointment type, and each clinician chooses how their own calendar applies it. Event cards also show each appointment's status, and the calendar can show buffer time and shade unavailable hours.
Choosing a color for an appointment type
When you add or edit an appointment type, the color sits next to its name:
- Pick one of the ready-made swatches
- Or select Custom color to open the color picker
- In the picker, choose from the wheel or type a HEX code
- Save the appointment type to keep the color
Note: Because you can pick any color, SigmaMD protects legibility: event text and icons switch automatically between black and white, whichever reads better on your color.

How the calendar applies colors
Each clinician sets this from the calendar toolbar, under Set colors by:
- Appointment type: Every event takes the color of its type
- Practice calendar: Every event takes the color of the calendar it belongs to

Switching recolors the whole view at once, and the choice is remembered for your next visit. It affects only your own calendar, not your colleagues'.
Blocks and external events
Some events have no appointment type to take a color from:
- Blocks, such as out-of-office time, use a distinct red-toned style
- Events from a connected external calendar use a neutral beige
Keeping these outside your color scheme makes it obvious at a glance which parts of the day are not bookable appointments.
Appointment status on the card
Each appointment card also shows where the visit stands, with an icon after the name:
| Confirmed |
|
|---|---|
| Checked in |
|
| Checked out |
|
| Completed |
|
| Canceled |
|
| No show |
|
Except in Month view, the visit-type icon follows the status icon on every appointment that isn't canceled or a no-show. When a card is too narrow for both, only the status icon shows.
An appointment that isn't confirmed yet has no status icon, so its card shows only the visit-type icon.
Past appointments fade, and so do canceled and completed ones. Checked-in and no-show appointments never fade, so a waiting patient or a missed visit stays easy to spot.

Buffer time
To see buffer time on the calendar, open More options in the toolbar and turn on Show buffer. It's off by default and, like Set colors by, changes only your own calendar.
With Show buffer on:
- A hatched Buffer band follows each appointment that has buffer time
- Canceled and no-show appointments show no band
- Month view doesn't show buffers
Seeing the buffer makes the real length of each visit clear at a glance.

Unavailable hours
In Day view, the hours outside a calendar's weekly availability are shaded. Week view shades them too when only one calendar is visible, so you can see at a glance when that calendar is available.





