add --color-scheme flag for persistent dark/light mode (#528)

Fixes #519. Playwright defaults `colorScheme` to `light` on all new contexts, overriding the browser/OS dark mode setting. This is especially disruptive in CDP mode, where every reconnection resets the scheme. The `set media dark` command also didn't persist its choice to new tabs or pages.

- Add `--color-scheme <dark|light|no-preference>` flag, config key (`colorScheme`), and env var (`AGENT_BROWSER_COLOR_SCHEME`)
- Store the preference in `BrowserManager` and automatically apply it to all new contexts (via Playwright's context option) and all new pages (via `page.emulateMedia` in `setupPageTracking`)
- `set media dark/light` now also persists its choice for subsequent pages and tabs

This commit is contained in:

Chris Tate

2026-02-23 01:50:17 -06:00

committed by

GitHub

parent 467b830974

commit 12d79e4428

14 changed files with 112 additions and 4 deletions

									
										cli/src/commands.rs
									
		+1
		
												View File
												
				@@ -1864,6 +1864,7 @@ mod tests {

				            cli_proxy_bypass: false,

				            cli_allow_file_access: false,

				            annotate: false,

				            color_scheme: None,

				        }

				    }