[Debian-astro-maintainers] Bug#955381: qfitsview: Unuseable with dark color-themes

[Christian Herenz]

Package: qfitsview
Version: 3.3+p1+dfsg-2+b1
Severity: minor
Tags: upstream

Dear Maintainer,

I am using the qfitsview package within the KDE desktop environment.
There I have selected the "Breeze Dark" theme in "System Settings"
under the "Colours" pane.  With this setting it is impossible to get a
good view of the spectrum in the application, since it is now drawn as
a black line in front of a dark background.  Also some of the icons in
the toolbar are now very hard to read.  It appears there is no option
within the software to change internal colours or icons.

For now I have found the following workaround with using the qt5ct
package.  In qt5ct I change the settings to a light colour-scheme
(e.g. airy), and then I created an alias

 alias QFitsView='env QT_QPA_PLATFORMTHEME=qt5ct QFitsView'

Of course, the compatibility with dark qt5 colour themes is something
that, in one way or another, is something that should be addressed
upstream.  But maybe something like my workaround is possible within
the package to ensure that users with a dark desktop theme do not end
up with a broken QFitsView?

Thank you very much,
Christian Herenz

-- System Information:
Debian Release: 10.3
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-8-amd64 (SMP w/8 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:de (charmap=UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages qfitsview depends on:
ii  fftw2                2.1.5-4.2+b1
ii  g++                  4:8.3.0-1
ii  libc6                2.28-10
ii  libc6-dev            2.28-10
ii  libcpgplot0          1.1.0-1
ii  libgcc1              1:8.3.0-6
ii  libgl1               1.1.0-1
ii  libgl1-mesa-glx      18.3.6-2+deb10u1
ii  libgsl23             2.5+dfsg-6
ii  libgslcblas0         2.5+dfsg-6
ii  libqt5core5a         5.11.3+dfsg1-1+deb10u3
ii  libqt5gui5           5.11.3+dfsg1-1+deb10u3
ii  libqt5network5       5.11.3+dfsg1-1+deb10u3
ii  libqt5opengl5        5.11.3+dfsg1-1+deb10u3
ii  libqt5printsupport5  5.11.3+dfsg1-1+deb10u3
ii  libqt5widgets5       5.11.3+dfsg1-1+deb10u3
ii  libqt5x11extras5     5.11.3-2
ii  libstdc++6           8.3.0-6
ii  libvtk6.3            6.3.0+dfsg2-2+b5
ii  libvtk6.3-qt         6.3.0+dfsg2-2+b5
ii  libxpa1              2.1.18-4
ii  zlib1g               1:1.2.11.dfsg-1

Versions of packages qfitsview recommends:
ii  dpuser-doc  3.3+p1+dfsg-2

qfitsview suggests no packages.

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