New Horizon Experience. This article describes the New Horizon Experience, which is available now. As of September 28, 2026, New Horizon is the default starting point on a computer or laptop. In the Horizon WebRef mobile apps for Android and iOS, New Horizon is already what you see. If you still have the older layout, choose Switch to New Horizon from the banner or your account menu. You can switch back to Legacy Horizon from that menu any time during the transition.
This article covers Light Theme and Dark Theme in the New Horizon Experience. Every signed-in member can change the colors they see on that account and device.
Use it when you want a lighter or darker look. The pages and tools stay the same. Only the colors change. Finding the account menu is covered in How to find your way around New Horizon.
Switch Light Theme and Dark Theme
Open your account menu (your name or photo). If you are on the light colors you see Dark Theme. If you are already on dark you see Light Theme. Only one of those two appears at a time. Choose the one you want. Your choice is saved for that account on that device.
On a computer, the same account items drop down from the top right.
Here is the Game Schedule in Light Theme on a phone.
The same Game Schedule on a computer in Light Theme.
The same Game Schedule in Dark Theme on a phone.
The same Game Schedule on a computer in Dark Theme.
If you still see the older legacy desktop or laptop layout
On the older layout, organization administrators may still see a System Colors tab on System Settings. Those organization-wide colors are discontinued on New Horizon. Stored association colors are left unchanged for any remaining older screens. New Horizon pages and the Horizon WebRef mobile apps use Light Theme and Dark Theme instead. There is no System Colors tab on upgraded System Settings.
If you want a darker or lighter look on New Horizon, switch from the older layout with Switch to New Horizon, then use Dark Theme or Light Theme in the account menu.