GNOME Bugzilla – Bug 734796
Warning X marks are confusing
Last modified: 2018-05-22 12:25:04 UTC
When a cell can't be filled, a red X is shown in the cell. This has a few problems: * It doesn't look like you can enter a number into the cell. * If you put a number into the cell, you no longer see the warning. * The X looks bad. Changing the background colour of the cell would be a better approach for showing the warning.
What color should the background be? The red used for the X wouldn't look too good in my opinion.
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