How to set background effect or default color to white channel on RGBW strip?

[MissMusic]

I might be confused with RGBW-settings, but this is what I'm trying to achieve:
At night when the TV and stream is off I want the option to have only the white channel in my RGBW-strip on, more or less be a "normal" light in the room, but neither hyperhdr nor hyperk allow me to set RGBW values.

If I in HyperHDR set RGB to say 255,255,255 the white channel is not enabled at all, only the RGB.
If I set the same values in hyperk as light preset, all four channels, RGB and W, are on.

Switching from running full WLED to hyperk made HA not recognize the white channel when adding it through the WLED integration, so I can't enable it through HA either.

Is what I want to do possible with the hyperk firmware, or do I need to revert back to full WLED and lose the new RGBW features hyperk enabled?

[awawa-dev]

The 'Solid color' effect in Hyperk is RGB, so when choosing the SK6812 strip, RGB is always converted to RGBW according to Hyperk's calibration settings. The external stream can come in as either RGB or RGBW. Hyperk's calibration will automatically calculate W, whereas RGBW will be displayed exactly as received (meaning calibration was done in an external app). With the proper RGB to RGBW calibration (255,255,255) settings in Hyperk, the color white will always fully use the white LED - by default, it only partially mixes it in.