Highlight inactive selection in bold

An inactive selection is one where the view is part of the context stack, but
not the active view. For example, the files view when you enter the staging
panel, or any view when you open a panel.

vendor/github.com/jesseduffield/gocui/view.go

@@ -81,6 +81,11 @@ type View struct {
 	// foreground colors of the selected line, when it is highlighted.
 	SelBgColor, SelFgColor Attribute
 
+	// InactiveViewSelBgColor is used to configure the background color of the
+	// selected line, when it is highlighted but the view doesn't have the
+	// focus.
+	InactiveViewSelBgColor Attribute
+
 	// If Editable is true, keystrokes will be added to the view's internal
 	// buffer at the cursor position.
 	Editable bool
@@ -96,6 +101,9 @@ type View struct {
 	// If Highlight is true, Sel{Bg,Fg}Colors will be used
 	// for the line under the cursor position.
 	Highlight bool
+	// If HighlightInactive is true, InavtiveViewSel{Bg,Fg}Colors will be used
+	// instead of Sel{Bg,Fg}Colors for highlighting selected lines.
+	HighlightInactive bool
 
 	// If Frame is true, a border will be drawn around the view.
 	Frame bool
@@ -404,6 +412,7 @@ func newView(name string, x0, y0, x1, y1 int, mode OutputMode) *View {
 
 	v.FgColor, v.BgColor = ColorDefault, ColorDefault
 	v.SelFgColor, v.SelBgColor = ColorDefault, ColorDefault
+	v.InactiveViewSelBgColor = ColorDefault
 	v.TitleColor, v.FrameColor = ColorDefault, ColorDefault
 	return v
 }
@@ -506,7 +515,11 @@ func (v *View) setRune(x, y int, ch rune, fgColor, bgColor Attribute) error {
 				fgColor += 8
 			}
 			fgColor = fgColor | AttrBold
-			bgColor = bgColor | v.SelBgColor
+			if v.HighlightInactive {
+				bgColor = bgColor | v.InactiveViewSelBgColor
+			} else {
+				bgColor = bgColor | v.SelBgColor
+			}
 		}
 	}