To forestall more confusion: If your system is set to dark mode, the page background is not #fff, and is instead #1d1e20.
There's a dark/light mode switcher at top of the page, but the page background still looks grey, even when going to another page on the blog that doesn't have the HDR images.
There's a dark/light mode switcher at top of the page, but the page background still looks grey, even when going to another page on the blog that doesn't have the HDR images.