Roughly speaking, these are the project types that can exist:
| icon | colour | usage | example |
|------|--------|-------|---------|
| project | blue | Real projects etc | #helpmebot |
| account | orange | Costing | #support |
| group | violet | Groups of people | #global_codereview |
| infrastructure | indigo | Network operations | #networkops |
| policy | red | Policy projects | #volunteer-nda |
| tag | yellow | Tags | #helpmebot_ircv3 |
| umbrella | blue | Project umbrellas, other organisational stuff | #siteframework |
| folder | grey | Misc organisation | #mirrors |
| group | green | Community project | #community |