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I feel that this is the responsibility of the OS and not of individual reading apps. Such "filter" services should be at the OS level, either default with the OS (preferable) or via a third-party OS ad-in (e.g. F.lux, ...).
I'm quite happy with the "Night Light" function in Windows 10. I find it's adjustments handle my needs well. My Windows tablet has the function enabled since I use it for reading, surfing, and watching videos. My Windows desktop, where I do a lot of photo processing and retouching, has it disabled by default, to retain color accuracy, Windows provides easy access to the toggle for enabling and disabling it manually.
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