Furo: pages flash black briefly on load

[coruscating]

On my setup (Mac + Chrome), pages are rendered with a black background briefly before they fully load. Here's an example timeline recorded with the Performance tool, which shows that the page loads the black background first with light top and sidebars, and then the main content is populated in dark mode, then the whole page changes to light mode when the DOM fully loads some 300+ ms later.

[coruscating]

In particular, this happens when Chrome is in dark mode.

[Eric-Arellano]

Interesting. This is because it is starting in dark mode! Then we override it here:

qiskit_sphinx_theme/src/qiskit_sphinx_theme/theme/qiskit-sphinx-theme/custom_templates/extra_head.html

Lines 11 to 16 in 27d7deb

	<script>
	{#- Force light mode. -#}
	document.addEventListener("DOMContentLoaded", function () {
	document.body.setAttribute("data-theme", "light");
	});
	</script>

I can play around with this. I'm not sure it's fixable, but hopefully. Thanks for the report! This is great polish. 💅