Consistency and clarity are both important when using color coding in Outlook. Before creating the color codes, make a list of potential categories and work through your internal organization process.

We’ll color-code appointments by a trigger phrase in the subject text, “Restructure Committee.” ... but the feature does work with existing appointments.

How do color filters work? When you look through a red filter, everything looks red. What do they do to the light? ... Matter 1.4.1 makes setup easier with QR codes or NFC.