| City name, organisation, OS name, monitor label | Config.Branding (Branding) |
| Screen size, welcome screen, monitor frame | Config.UI |
| Which apps are on the desktop, default wallpaper and colours | Config.DesktopApps, Config.DesktopDefaults |
| Any text, date or money format | locales/ui/<code>.json (Localization) |
| Inventory item icons | web/items/*.svg |
| Phone app page | web/phone/ (plain HTML, no build step) |