Borders

Side bars with tabs, as in an IDE: an explorer on the left, a terminal below, an outline on the right. Click a border's tab to open its panel beside the layout, again to close it; resize it with its splitter; drag tabs into a border and out of it.

• Dockable.Borders
• Dockable.Border
• Dockable.BorderContent
• border splitter
• data-location
• data-open