Disable blue light filter

[daerias]

Is there any way to disable blue light filter on oreo with a flow? Thanks

[digitalstone]

Probably with UI Control.

But you're more likely better off by creating a screensized widget with the yellow-orange-red tint and alpha you want.
Then you can turn off/on and control this widget by a flow.

[Desmanto]

You can probably use the Set System Setting to control the reading mode value. You need to find the value which correspond to the reading mode setting. I even made a flow to find this value (still unfinished). After you found out the correct string, toggle it several times to see what is the possible value, and then use that in the flow.

Unfortunately, most Set System Setting won't work in Oreo 8.1. There seems to be a special routine/API needed to trigger the system change. Some maybe require screen on/off, some probably need to toggle the wifi or the kind.

Last resort, as suggested by digitalstone, use Control UI to jump directly to the blue light filter option and turn it on/off depends on your need.