When using a "Dark mode" or "high contrast" color scheme for Windows 7, All Charts and Graphs in Calc display as nothing but a single black rectangle. If the black rectangle is selected and copy-pasted into, for example, MSPaint, it displays as a normal, colorful graph just as originally intended. So it's creating the graph correctly in Calc, the graph is there, but not displaying it as anything but a black featureless box. Changing the graph's colors in Calc has no effect, everything displays only as black. Scanning the internet, I see others are reporting this same issue. Just downloaded most recent version of LibreOffice, no change. Calc displays graphs, charts fine if you select the "Standard default" color scheme for Windows.
Steps to Reproduce:
1. In any Calc spreadsheet, select any data set
2. Do Insert-Chart and create any Chart type
3. Voila, you have a big black rectangle in your spreadsheet :)
A big solid black rectangle is displayed where the chart should be
A chart or Graph of the data would be displayed in the spreadsheet
User Profile Reset: Yes
Copy-pasting the black rectangle into any other LibreOffice Application just produces another black rectangle, but pasting it into any non-LibreOffice Application, say MSPaint, displays the chart/graph just as it should look.
Could you test with Win-x86_64@tb77-TDF from https://dev-builds.libreoffice.org/daily/master/current.html ? It is an unstable version that installs separately.
Set to NEEDINFO.
Change back to UNCONFIRMED, if the problem persists. Change to RESOLVED WORKSFORME, if the problem went away.