Pattern Buffer

Pick a TRON-style palette for this device and preview how it feels across the grid.

Changes here only affect this browser using local storage. They do not change the grid for anyone else.

Palette slots

Click a palette to apply it instantly. You can also change themes from the Grid Shell using the theme command.

How the Pattern Buffer works

This page controls the same theme system used by the Grid Shell theme command. Each palette maps to a set of core colors (grid, accent, background, panel) stored locally in this browser.

Picking a palette updates the grid instantly and remembers your choice as grid_theme_v1.
The change is device-local only; it does not change the look for other visitors.
You can still type theme red or similar in the Shell to switch from anywhere.

Use this as a quick way to audition palettes before committing to a longer session.