screen.colorDepth returns 30 on a standard 32-bit monitor.

[Wowfunhappy]

This is not necessarily a bug, I do not understand the problem space well enough!

Running console.log(screen.colorDepth) while using a standard monitor with 32-Bit color would usually be expected to print 24 (the bits used for the alpha channel aren't counted).

However, in Firefox Dynasty, the above code prints 30 on both my Desktop (connected to what is, as far as I know, a completely boring 32-Bit monitor) and my Macbook Air (using the internal LCD screen).

Is this expected behavior? I can't tell, it seems odd.

P.S. I am in fact quite interested in whether Mavericks could drive an HDR display, the HDR wouldn't work but I think the added color depth might? Something to try some day...

[RJVB]

On Sunday January 26 2025 18:49:21 Jonathan wrote: P.S. I am in fact quite interested in whether Mavericks could drive an HDR display, the HDR wouldn't work but I think 10 bit color might? Something to try some day...

Since you hijack your own thread: I'm dubious that you'd notice a lot of difference in every day life. IIUC a 10-bit depth will give you 1024 levels of pure gray instead of just 256, but you need content that will actually make use of those extra levels. I wouldn't be surprised if most code and codecs assume that a pixel has 3 8-bit colour components plus an optional 8-bit transparency component.