Created attachment 54893 [details]
Duplicate border + grid
summarize: grid lines disappeared in Calc for cells with background color.
In 3.5, when there is border of the cells around the cells, the grid is placed over the border?
So border and grid are displayed, the result is not pleasant and expected.
[Reproducible] with Parallel Dev-Installation of "LibreOffice 3.5.0 Beta2- WIN7 Home Premium (64bit) German UI [Build-ID : 8589e48-760cc4d-f39cf3d-1b2857e-60db978].
Borders should replace (or cover) grid lines, not be drawn "behind" the grid lines.
Yes, this was just fixed last Friday. The fix will be applied in 3.5 RC2.