Sleep screen should respect the inverted color choice about plato

[NiLuJe]

Likely the flash. Can't really be helped on devices without proper Eclipse waveform modes (i.e,, Mk 8+). (I mean, if you want to keep the flash, that is :D. And you generally do.).

(IIRC, there's a Plato fork that attempts to modulate the frontlight level during nightmode refreshes, but that's extremely difficult to achieve in a consistent manner across a wide range of devices in my experience (outside of doing in in-kernel), so, YMMV).

[randomnoise]

@NiLuJe, thanks for the information. Flash contributes to the situation and I don't want to deal with the kernel space on e-readers yet, I am new to this stuff 😄

The issue that I am having is related to the Plato though, it isn't about hardware or kernel. I opened the issue as a feature request but I think that it is a Plato bug.

I've skimmed through the code and I found this:

plato/crates/core/src/view/intermission.rs

Lines 62 to 67 in 81f19ab

	fn render(&self, fb: &mut dyn Framebuffer, _rect: Rectangle, fonts: &mut Fonts) {
	let scheme = if self.halt ^ fb.inverted() {
	TEXT_INVERTED_HARD
	} else {
	TEXT_NORMAL
	};

It looks like the code handles what I was asking (using black background in sleep screen if color is inverted) but there are if fb.inverted() { code blocks following that. So, I think the code undoes the change it did in the first place.

I think it should just be

let scheme = TEXT_NORMAL;

or something similar.

[randomnoise]

To make the my suggestion clear visually, in stock Plato 0.9.40, Home screen with inverted color and Sleeping screen with white background: