running this on host:
$ xfconf-query -c xsettings -p /Net/ThemeName -s HighContrast
switches the flatpak'd hexchat gtk2 theme to Adwaita instead of HighContrast, possibly due to:
\<TingPing> temporaryrespite, the gtk2 in flatpak is patched so if it does not find the theme name it will default to Adwaita
running this on host:
$ xfconf-query -c xsettings -p /Net/ThemeName -s HighContrast
switches the flatpak'd hexchat gtk2 theme to Adwaita instead of HighContrast, possibly due to: