Another darktable text tutorial! I know darktable has a reputation for being intimidating, but it's really powerful software and you can get a lot done with very few modules.
Very lovely, thank you for your awesome guide! I wanna see way more of those kinds, very helpful and straight to the point.
I already developed this exact style by accident and I'm using it most of the time for my pics.
I have a 1/4 or 1/2 black mist filter strapped on and do following post-processing steps:
decrease contrast
increase brilliance
add some grain
stronger filmic RGB with blacks lifted, and too strong lights
and then increase or decrease the strongest color in the color spectrum thingy (I don't know the english name for it, sorry).
If it should look a bit dreamy or special, then I increase the blue of the sky/ the orange of a sunset/ the tone of the subject for example.
See photo 1 and 2.
Normally, I don't amplify specific colours by default, because I have a CVD and then the pic looks very artificial. It's more of a special style element that's used when needed, but not otherwise.
If I want to let the viewer to look at the "contrast", which I already decreased by a lot, to let patterns or objects pop out more, or give the pic a "depressing" mood, then I decrease the brilliance of one tone. See photo 2
Picture 1: It still looks "wintery and sad", but the green of the twig is amplified. If the greens wouldn't be re-compensated, the whole pic would almost be black and white.
Pic 2: here I increased the purples a bit and amplified the shadows to fetch the mood and focus of the sunrise
Picture 3: still not much contrast, but the almost black&white-look and increased shadows put the focus onto the ice crystals instead of the interior of the barn.
In that way, I can artificially set more contrast, even if I reduced it before.