effective-border-color

Arguments: section

Returns the color that will be used to draw the border along the right side of a grid-column or grid-column-section or along the bottom side of a grid-row or grid-row-section. An application may either call or override this generic function, though it typically should not be necessary to do either, since border colors are usually specified with the border-color and/or default-cell-border-color properties, and effective-border-color is called internally whenever a grid border line is drawn.

The default method for grid-subsection (for a grid-row or a grid-column) will return the border-color property of the subsection if non-nil. Otherwise it will return the default-cell-border-color of the grid-section that contains the subsection, if non-nil, or else the default-cell-border-color property of the whole grid-widget, if non-nil. If none of these properties have been specified, then the color returned by system-disabled-color is returned (since the return value must be an actual color).

The default method for grid-section (for a grid-row-section or a grid-column-section) will return the section's border-color property if non-nil, or else the default-cell-border-color property of the whole grid-widget, if non-nil, or finally the color returned by system-edge-shadow-color.

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This page was not revised from the 10.0 page.
Created 2019.8.20.