Created attachment 150680 [details]
Started Windows 10 in a VM, switched to the high contrast mode and started LibreOffice. The menu items have gray font color on a gray canvas and the sidebar has a dark background (unlike the toolbars) with Sifr dark icons.
Created attachment 150681 [details]
This report kind of has multiple issues. There is bug 98067 for the menus, but back then they were black on black. I confirm they are now gray on gray.
Maybe we should make this about the icons. They are actually Sifr, not Sifr dark (which would work fine). The sidebar deck icons are actually not visible at all, which might be some other issue.
Version: 18.104.22.168.alpha0+ (x64)
Build ID: 3e64065612acec2eb29aa21e2b515953422256d7
CPU threads: 4; OS: Windows 10.0; UI render: default; VCL: win;
TinderBox: Win-x86_64@62-TDF, Branch:master, Time: 2019-08-15_22:57:26
Locale: fi-FI (fi_FI); UI-Language: en-US
The theme High contrast #2 shows green text for menus. High contrast white shows black text for menus, but Sidebar icons are still invisible.
So before we switch to Sifr Dark we have to fix bug 98067 that also affects the toolbar background color, AFAICS.