There are some inconsistencies in Android 12 with this whole theming malarkey.
I love it, but I feel like regardless of my wallpaper choice, I only actually have a handful of coloured icons to choose from.
There's a shade of every colour, sure, but it's the same shade. So if you have some yellow on your wallpaper you get ONE shade of yellow for your icons and that's it. Same with green, although I've seen two different greens. One neon lime and the other a little more subdued.
But I feel like it's giving you a colour based on a pool of pre chosen colours that Google decided to use. It certainly isn't using the whole colour palette.
It's also inconsistent to the branding Google have used to sell the Pixels.
Like in this picture, you can see that the search bar and the icons are different shades. Yet so far, I've only seen a white bar for my light themed set ups.
View attachment 1909826
I've also seen a music widget being used in the press renders and it isn't one that is available on device.
Strange!