In Options > Accessibility there is an option:
 Use system colours for page previews
This is a good idea for those of us who use an easy-on-the-eyes dark scheme in Libre, so that we can see what the real page will look like (for example if our choice of table border colour will actually work or not on a white page).
But it's kind of awkward to switch to it and back again, as we need to open up Options to do that,
What about a button in the Page preview window, to toggle this option on/off?
A button with an "eye" icon would be easy to find and would be intuitive.
Steps to Reproduce:
1.open Options > Accessibility
2.check Use system colours for page previews
3.open page preview
page preview shows real page colours
The toggle is needed in the page preview window
User Profile Reset: No
ui default, gtk3
+1, but seems this should be a function of the already provided 'Print Preview' document view mode.
The function does not much, it changes the background and font color to white/black for the page preview. Point is that you configured the "easy-on-the-eyes scheme" for working with the document and inspecting the result, the page preview, should more or less always be a true what-you-see-is-what-you-print version. Adding an option to the preview toolbar to toggle the b/w mode on/off makes only sense if you frequently use the two modes for some purpose. And I don't see it.
Looks OK to me
Cannot understand why Cor and Stuart agree with the request. But anyway, let's accept then.
Idea of giving a preview -- we do so already for printing -- "so that we can see what the real page will look like". Effectively separating the user chosen UI rendering from a document's rendering when output, but temporarily with a toggle.
Why reuse of the Print Preview methods are appealing, little new dev effort.