[Libreoffice-bugs] [Bug 141475] New: Formatting aids color should either be editable or be automatically adjusted to stay in contrast with page background.

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=141475

            Bug ID: 141475
           Summary: Formatting aids color should either be editable or be
                    automatically  adjusted to stay in contrast with page
                    background.
           Product: LibreOffice
           Version: 7.0.2.2 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: medium
         Component: Writer
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: sztejkat at yahoo.com

Description:
LibreOffice Writer.

Formatting aids (paragraph end, space, margins and etc.) can be invisible if
background of a page is set to color close to that of the aids.

Formatting aids color is not user editable, neither by dialogs nor by expert
configuration (search on "aids" returns no result) and stays fixed regardless
of what is behind it.

In previous version most of them were black, what was consistent with 99% of
text we do edit (black on color paper), so if text was visible they were
visible too. In 7.0.2.2 it is a "light blue", possibly to let users to easily
distinguish what signs on screen are their and what are automatic aids. The
light blue color or dark gray are one of colors used by aids can be also
selected by a user to be a page background. If user does such a selection the
formatting aids are no longer visible.




Steps to Reproduce:
1.Open new document.
2.Type some text, enable formatting aids.
3.Set page background to blue, observe that paragraph marks and spaces, which
are also blue are hardly visible;
3.Set page background to dark gray, observe that page text are boundary, which
is also gray is hardly visible;

Actual Results:
Depending on Your monitor or eye-sight You may be still able to tell formatting
aids apart of a background, but in many cases You won't be able to do that.

Expected Results:
Formatting aids should be visible regardless of what is behind them.


Reproducible: Always


User Profile Reset: No



Additional Info:
Even tough I do consider it to be a serious design bug (there was no thinking
about: "What would happen if we let user to select any color as a background
and then we draw a fixed color gray line over it mark something?") I think it
is touching less that 1% of use scenarios so I decided to qualify it as an
enhancement request.

1.There is no work around.

2.Easiest to implement: make the formatting aid color to be editable in
"Writer->formatting aids" options dialog. This is however not an good work
around;

3.Most user friendly solution: adapt formatting aids (including all other
"automatic" elements like page borders), margins marks adapt to be in a
contrast color to element they are drawn over. 

I'm not sure if this is still a case with Your drawing library, but in older
days we had something called: "XOR drawing mode" which ensured that what we
draw over something already existing on a drawing plane was always clearly
visible. Not always nice looking, but always in high contrast. If this is a
case with Your rendering library, switch to that mode. With a bit of play it
can be made to have exact and predictable colors with white background and will
ensure a good contrast with other backgrounds.

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