ai_uniapp_v2/uni_modules/uview-plus/components/u-navbar/theme-vars.scss

:root,
page,
body {
	--up-navbar-bg-color: #ffffff;
}

@media (prefers-color-scheme: dark) {
	:root,
	page,
	body {
		--up-navbar-bg-color: #1c1c1e;
	}
}

[data-up-theme='light'] {
	--up-navbar-bg-color: #ffffff;
}

[data-up-theme='dark'] {
	--up-navbar-bg-color: #1c1c1e;
}