In a document made of cells with black background, the cursor and cell selection frame are invisible since they are black as well. This should be easy to solve by using negative colors for the cursor and selections like in Libreoffice writer.
tested under Win8.1 x64 with LibO 4.3.4.1 the cursor turns negative once you enter text in a cell so it's visible (white on black) only the cell selection frame is invisible (black on black) but only if you select just one cell... if multuple cells are selected hte selection is transparent light blue so it's again visible against a black background so I confirm just the latter part of the bug, thus I change summary notes from: UI Enhancement: selection highlighting and cursor invisible in black documents to: UI: single cell selection frame is invisible in black documents enhancement goes into the "importance" field
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