Update CHANGELOG

Motivation:

`--color 16` can be a better default than `dark` or `light`, since it uses
the colors defined by the current theme. This usually blends in more
naturally and works well in both light and dark modes.

However, some elements were previously hard-coded with white or black
foreground colors, which can cause rendering issues in certain terminal
themes.

* 16
  * Avoid using black or white foreground colors, so it works better with
    both dark and light themes
  * Display 'info' in italic to better separate it from the other parts
* dark / light
  * Display 'info' in italic for consistency

.github/workflows/linux.yml

@@ -25,7 +25,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "1.21"
+        go-version: "1.23"
 
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1

.github/workflows/macos.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: "1.21"
+        go-version: "1.23"
 
     - name: Setup Ruby
       uses: ruby/setup-ruby@v1

.tool-versions

@@ -1,2 +1,2 @@
-golang 1.21.13
+golang 1.23.12
 ruby 3.4.1

CHANGELOG.md

@@ -1,6 +1,33 @@
 CHANGELOG
 =========
 
+0.66.0
+------
+- Style changes
+    - Updated `--color base16` (alias: `16`) theme so that it works better with both dark and light themes.
+    - Narrowed the gutter column by using the left-half block character (`▌`).
+    - Removed background colors from markers.
+- Added `--gutter CHAR` option for customizing the gutter column. Some examples using [box-drawing characters](https://en.wikipedia.org/wiki/Box-drawing_characters):
+  ```sh
+  # Right-aligned gutter
+  fzf --gutter '▐'
+
+  # Even thinner gutter
+  fzf --gutter '▎'
+
+  # Checker
+  fzf --gutter '▚'
+
+  # Dotted
+  fzf --gutter '▖'
+
+  # Full-width
+  fzf --gutter '█'
+
+  # No gutter
+  fzf --gutter ' '
+  ```
+
 0.65.2
 ------
 - Bug fixes and improvements

README.md

@@ -47,10 +47,10 @@ characters and still get the results you want.
 Highlights
 ----------
 
-- 📦 **Portable** — Distributed as a single binary for easy installation
-- ⚡ **Blazingly fast** — Highly optimized code instantly processes millions of items
-- 🛠️ **Extremely versatile** — Fully customizable via an event-action binding mechanism
-- 🔋 **Batteries included** — Includes integration with bash, zsh, fish, Vim, and Neovim
+- **Portable** — Distributed as a single binary for easy installation
+- **Fast** — Optimized to process millions of items instantly
+- **Versatile** — Fully customizable through an event-action binding mechanism
+- **All-inclusive** — Comes with integrations for Bash, Zsh, Fish, Vim, and Neovim
 
 Table of Contents
 -----------------

go.mod

@@ -1,20 +1,20 @@
 module github.com/junegunn/fzf
 
 require (
-	github.com/charlievieth/fastwalk v1.0.13
+	github.com/charlievieth/fastwalk v1.0.14
+	github.com/gdamore/tcell/v2 v2.9.0
 	github.com/junegunn/go-shellwords v0.0.0-20250127100254-2aa3b3277741
-	github.com/junegunn/tcell/v2 v2.9.1
 	github.com/mattn/go-isatty v0.0.20
 	github.com/rivo/uniseg v0.4.7
-	golang.org/x/sys v0.30.0
-	golang.org/x/term v0.29.0
+	golang.org/x/sys v0.35.0
+	golang.org/x/term v0.34.0
 )
 
 require (
 	github.com/gdamore/encoding v1.0.1 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
-	golang.org/x/text v0.22.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
 )
 
-go 1.21.13
+go 1.23.0

go.sum

@@ -1,11 +1,11 @@
-github.com/charlievieth/fastwalk v1.0.13 h1:rCdesaKpxBft4jdNqKbJtTS23Dfhem3eEPE0jfj//xc=
-github.com/charlievieth/fastwalk v1.0.13/go.mod h1:diVcUreiU1aQ4/Wu3NbxxH4/KYdKpLDojrQ1Bb2KgNY=
+github.com/charlievieth/fastwalk v1.0.14 h1:3Eh5uaFGwHZd8EGwTjJnSpBkfwfsak9h6ICgnWlhAyg=
+github.com/charlievieth/fastwalk v1.0.14/go.mod h1:diVcUreiU1aQ4/Wu3NbxxH4/KYdKpLDojrQ1Bb2KgNY=
 github.com/gdamore/encoding v1.0.1 h1:YzKZckdBL6jVt2Gc+5p82qhrGiqMdG/eNs6Wy0u3Uhw=
 github.com/gdamore/encoding v1.0.1/go.mod h1:0Z0cMFinngz9kS1QfMjCP8TY7em3bZYeeklsSDPivEo=
+github.com/gdamore/tcell/v2 v2.9.0 h1:N6t+eqK7/xwtRPwxzs1PXeRWnm0H9l02CrgJ7DLn1ys=
+github.com/gdamore/tcell/v2 v2.9.0/go.mod h1:8/ZoqM9rxzYphT9tH/9LnunhV9oPBqwS8WHGYm5nrmo=
 github.com/junegunn/go-shellwords v0.0.0-20250127100254-2aa3b3277741 h1:7dYDtfMDfKzjT+DVfIS4iqknSEKtZpEcXtu6vuaasHs=
 github.com/junegunn/go-shellwords v0.0.0-20250127100254-2aa3b3277741/go.mod h1:6EILKtGpo5t+KLb85LNZLAF6P9LKp78hJI80PXMcn3c=
-github.com/junegunn/tcell/v2 v2.9.1 h1:r5PqSXkPwCMWRCjOu6MY5xdtzpeNAo4W/eZMKEcibYA=
-github.com/junegunn/tcell/v2 v2.9.1/go.mod h1:Hjh577pMWP9M119MS7yAK1ygOfQYjmOjdYxbSxlClaw=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
 github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
@@ -34,20 +34,20 @@ golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.29.0 h1:L6pJp37ocefwRRtYPKSWOWzOtWSxVajvz2ldH/xi3iU=
-golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
+golang.org/x/term v0.34.0 h1:O/2T7POpk0ZZ7MAzMeWFSg6S5IpWd/RXDlM9hgM3DR4=
+golang.org/x/term v0.34.0/go.mod h1:5jC53AEywhIVebHgPVeg0mj8OD3VO9OzclacVrqpaAw=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
-golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
+golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
+golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=

man/man1/fzf.1

@@ -246,11 +246,11 @@ color mappings. Each entry is separated by a comma and/or whitespaces.
 
 .RS
 .B BASE SCHEME:
-    (default: \fBdark\fR on 256-color terminal, otherwise \fB16\fR; If \fBNO_COLOR\fR is set, \fBbw\fR)
+    (default: \fBdark\fR on 256-color terminal, otherwise \fBbase16\fR; If \fBNO_COLOR\fR is set, \fBbw\fR)
 
-    \fBdark    \fRColor scheme for dark 256-color terminal
-    \fBlight   \fRColor scheme for light 256-color terminal
-    \fB16      \fRColor scheme for 16-color terminal
+    \fBdark    \fRColor scheme for dark terminal
+    \fBlight   \fRColor scheme for light terminal
+    \fBbase16  \fRColor scheme using base 16 colors (alias: \fB16\fR)
     \fBbw      \fRNo colors (equivalent to \fB\-\-no\-color\fR)
 
 .B COLOR NAMES:

src/options.go

@@ -59,7 +59,7 @@ Usage: fzf [options]
 
   GLOBAL STYLE
     --style=PRESET           Apply a style preset [default|minimal|full[:BORDER_STYLE]
-    --color=COLSPEC          Base scheme (dark|light|16|bw) and/or custom colors
+    --color=COLSPEC          Base scheme (dark|light|base16|bw) and/or custom colors
     --no-color               Disable colors
     --no-bold                Do not use bold text
 
@@ -590,6 +590,7 @@ type Options struct {
 	Separator         *string
 	JumpLabels        string
 	Prompt            string
+	Gutter            *string
 	Pointer           *string
 	Marker            *string
 	MarkerMulti       *[3]string
@@ -710,6 +711,7 @@ func defaultOptions() *Options {
 		Separator:    nil,
 		JumpLabels:   defaultJumpLabels,
 		Prompt:       "> ",
+		Gutter:       nil,
 		Pointer:      nil,
 		Marker:       nil,
 		MarkerMulti:  nil,
@@ -1323,7 +1325,7 @@ func parseTheme(defaultTheme *tui.ColorTheme, str string) (*tui.ColorTheme, erro
 			theme = dupeTheme(tui.Dark256)
 		case "light":
 			theme = dupeTheme(tui.Light256)
-		case "16":
+		case "base16", "16":
 			theme = dupeTheme(tui.Default16)
 		case "bw", "no":
 			theme = tui.NoColorTheme()
@@ -2857,6 +2859,13 @@ func parseOptions(index *int, opts *Options, allArgs []string) error {
 			if err != nil {
 				return err
 			}
+		case "--gutter":
+			str, err := nextString("gutter character required")
+			if err != nil {
+				return err
+			}
+			str = firstLine(str)
+			opts.Gutter = &str
 		case "--pointer":
 			str, err := nextString("pointer sign required")
 			if err != nil {
@@ -3355,22 +3364,28 @@ func applyPreset(opts *Options, preset string) error {
 	return nil
 }
 
-func validateSign(sign string, signOptName string) error {
-	if uniseg.StringWidth(sign) > 2 {
-		return fmt.Errorf("%v display width should be up to 2", signOptName)
+func validateSign(sign string, signOptName string, maxWidth int) error {
+	if uniseg.StringWidth(sign) > maxWidth {
+		return fmt.Errorf("%v display width should be up to %d", signOptName, maxWidth)
 	}
 	return nil
 }
 
 func validateOptions(opts *Options) error {
 	if opts.Pointer != nil {
-		if err := validateSign(*opts.Pointer, "pointer"); err != nil {
+		if err := validateSign(*opts.Pointer, "pointer", 2); err != nil {
 			return err
 		}
 	}
 
 	if opts.Marker != nil {
-		if err := validateSign(*opts.Marker, "marker"); err != nil {
+		if err := validateSign(*opts.Marker, "marker", 2); err != nil {
+			return err
+		}
+	}
+
+	if opts.Gutter != nil {
+		if err := validateSign(*opts.Gutter, "gutter", 1); err != nil {
 			return err
 		}
 	}

src/options_test.go

@@ -462,7 +462,7 @@ func TestValidateSign(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		err := validateSign(testCase.inputSign, "")
+		err := validateSign(testCase.inputSign, "", 2)
 		if testCase.isValid && err != nil {
 			t.Errorf("Input sign `%s` caused error", testCase.inputSign)
 		}

src/terminal.go

@@ -272,6 +272,7 @@ type Terminal struct {
 	footerLabel        labelPrinter
 	footerLabelLen     int
 	footerLabelOpts    labelOpts
+	gutterReverse      bool
 	pointer            string
 	pointerLen         int
 	pointerEmpty       string
@@ -1094,10 +1095,27 @@ func NewTerminal(opts *Options, eventBox *util.EventBox, executor *util.Executor
 	// This should be called before accessing tui.Color*
 	tui.InitTheme(opts.Theme, renderer.DefaultTheme(), opts.Black, opts.InputBorderShape.Visible(), opts.HeaderBorderShape.Visible())
 
+	// Gutter character
+	var gutterChar string
+	if opts.Gutter != nil {
+		gutterChar = *opts.Gutter
+	} else if t.unicode && !t.theme.Gutter.Color.IsDefault() {
+		gutterChar = "▌"
+	} else {
+		gutterChar = " "
+		t.gutterReverse = true
+	}
+
 	t.prompt, t.promptLen = t.parsePrompt(opts.Prompt)
 	// Pre-calculated empty pointer and marker signs
-	t.pointerEmpty = strings.Repeat(" ", t.pointerLen)
+	if t.pointerLen == 0 {
+		t.pointerEmpty = ""
+	} else {
+		t.pointerEmpty = gutterChar + strings.Repeat(" ", util.Max(0, t.pointerLen-1))
+	}
 	t.markerEmpty = strings.Repeat(" ", t.markerLen)
+
+	// Labels
 	t.listLabel, t.listLabelLen = t.ansiLabelPrinter(opts.ListLabel.label, &tui.ColListLabel, false)
 	t.borderLabel, t.borderLabelLen = t.ansiLabelPrinter(opts.BorderLabel.label, &tui.ColBorderLabel, false)
 	t.previewLabel, t.previewLabelLen = t.ansiLabelPrinter(opts.PreviewLabel.label, &tui.ColPreviewLabel, false)
@@ -3096,9 +3114,21 @@ func (t *Terminal) renderEmptyLine(line int, barRange [2]int) {
 	t.renderBar(line, barRange)
 }
 
+func (t *Terminal) gutter(current bool) {
+	var color tui.ColorPair
+	if current {
+		color = tui.ColCurrentCursorEmpty
+	} else if t.gutterReverse {
+		color = tui.ColCursorEmpty
+	} else {
+		color = tui.ColCursorEmptyChar
+	}
+	t.window.CPrint(color, t.pointerEmpty)
+}
+
 func (t *Terminal) renderGapLine(line int, barRange [2]int, drawLine bool) {
 	t.move(line, 0, false)
-	t.window.CPrint(tui.ColCursorEmpty, t.pointerEmpty)
+	t.gutter(false)
 	t.window.Print(t.markerEmpty)
 	x := t.pointerLen + t.markerLen
 
@@ -3262,7 +3292,7 @@ func (t *Terminal) printItem(result Result, line int, maxLine int, index int, cu
 				return indentSize
 			}
 			if len(label) == 0 {
-				t.window.CPrint(tui.ColCurrentCursorEmpty, t.pointerEmpty)
+				t.gutter(true)
 			} else {
 				t.window.CPrint(tui.ColCurrentCursor, label)
 			}
@@ -3284,7 +3314,7 @@ func (t *Terminal) printItem(result Result, line int, maxLine int, index int, cu
 				return indentSize
 			}
 			if len(label) == 0 {
-				t.window.CPrint(tui.ColCursorEmpty, t.pointerEmpty)
+				t.gutter(false)
 			} else {
 				t.window.CPrint(tui.ColCursor, label)
 			}
@@ -3630,7 +3660,7 @@ func (t *Terminal) printColoredString(window tui.Window, text []rune, offsets []
 	for _, offset := range offsets {
 		b := util.Constrain32(offset.offset[0], index, maxOffset)
 		e := util.Constrain32(offset.offset[1], index, maxOffset)
-		if url != nil && offset.url == nil {
+		if url != nil && offset.url != url {
 			url = nil
 			window.LinkEnd()
 		}

src/tui/tcell.go

@@ -7,8 +7,8 @@ import (
 	"regexp"
 	"time"
 
+	"github.com/gdamore/tcell/v2"
 	"github.com/junegunn/fzf/src/util"
-	"github.com/junegunn/tcell/v2"
 
 	"github.com/rivo/uniseg"
 )
@@ -724,13 +724,13 @@ func (r *FullscreenRenderer) GetChar() Event {
 
 func (r *FullscreenRenderer) Pause(clear bool) {
 	if clear {
-		r.Close()
+		_screen.Suspend()
 	}
 }
 
 func (r *FullscreenRenderer) Resume(clear bool, sigcont bool) {
 	if clear {
-		r.initScreen()
+		_screen.Resume()
 	}
 }
 

src/tui/tcell_test.go

@@ -6,8 +6,8 @@ import (
 	"os"
 	"testing"
 
+	"github.com/gdamore/tcell/v2"
 	"github.com/junegunn/fzf/src/util"
-	"github.com/junegunn/tcell/v2"
 )
 
 func assert(t *testing.T, context string, got any, want any) bool {

src/tui/tui.go

@@ -303,6 +303,14 @@ const (
 	colMagenta
 	colCyan
 	colWhite
+	colGrey
+	colBrightRed
+	colBrightGreen
+	colBrightYellow
+	colBrightBlue
+	colBrightMagenta
+	colBrightCyan
+	colBrightWhite
 )
 
 type FillReturn int
@@ -776,6 +784,7 @@ var (
 	ColMatch                ColorPair
 	ColCursor               ColorPair
 	ColCursorEmpty          ColorPair
+	ColCursorEmptyChar      ColorPair
 	ColMarker               ColorPair
 	ColSelected             ColorPair
 	ColSelectedMatch        ColorPair
@@ -922,19 +931,19 @@ func init() {
 		SelectedFg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedBg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedMatch:    ColorAttr{colUndefined, AttrUndefined},
-		DarkBg:           ColorAttr{colBlack, AttrUndefined},
+		DarkBg:           ColorAttr{colGrey, AttrUndefined},
 		Prompt:           ColorAttr{colBlue, AttrUndefined},
 		Match:            ColorAttr{colGreen, AttrUndefined},
-		Current:          ColorAttr{colYellow, AttrUndefined},
-		CurrentMatch:     ColorAttr{colGreen, AttrUndefined},
+		Current:          ColorAttr{colBrightWhite, AttrUndefined},
+		CurrentMatch:     ColorAttr{colBrightGreen, AttrUndefined},
 		Spinner:          ColorAttr{colGreen, AttrUndefined},
-		Info:             ColorAttr{colWhite, AttrUndefined},
+		Info:             ColorAttr{colYellow, AttrUndefined},
 		Cursor:           ColorAttr{colRed, AttrUndefined},
 		Marker:           ColorAttr{colMagenta, AttrUndefined},
 		Header:           ColorAttr{colCyan, AttrUndefined},
 		Footer:           ColorAttr{colCyan, AttrUndefined},
-		Border:           ColorAttr{colBlack, AttrUndefined},
-		BorderLabel:      ColorAttr{colWhite, AttrUndefined},
+		Border:           ColorAttr{colDefault, Dim},
+		BorderLabel:      ColorAttr{colDefault, AttrUndefined},
 		Ghost:            ColorAttr{colUndefined, Dim},
 		Disabled:         ColorAttr{colUndefined, AttrUndefined},
 		PreviewFg:        ColorAttr{colUndefined, AttrUndefined},
@@ -1168,10 +1177,11 @@ func initPalette(theme *ColorTheme) {
 	ColSelectedMatch = pair(theme.SelectedMatch, theme.SelectedBg)
 	ColCursor = pair(theme.Cursor, theme.Gutter)
 	ColCursorEmpty = pair(blank, theme.Gutter)
+	ColCursorEmptyChar = pair(theme.Gutter, theme.ListBg)
 	if theme.SelectedBg.Color != theme.ListBg.Color {
 		ColMarker = pair(theme.Marker, theme.SelectedBg)
 	} else {
-		ColMarker = pair(theme.Marker, theme.Gutter)
+		ColMarker = pair(theme.Marker, theme.ListBg)
 	}
 	ColCurrent = pair(theme.Current, theme.DarkBg)
 	ColCurrentMatch = pair(theme.CurrentMatch, theme.DarkBg)

test/lib/common.rb

@@ -24,7 +24,7 @@ DEFAULT_TIMEOUT = 10
 FILE = File.expand_path(__FILE__)
 BASE = File.expand_path('../..', __dir__)
 Dir.chdir(BASE)
-FZF = "FZF_DEFAULT_OPTS=\"--no-scrollbar --pointer \\> --marker \\>\" FZF_DEFAULT_COMMAND= #{BASE}/bin/fzf".freeze
+FZF = %[FZF_DEFAULT_OPTS="--no-scrollbar --gutter ' ' --pointer '>' --marker '>'" FZF_DEFAULT_COMMAND= #{BASE}/bin/fzf].freeze
 
 def wait(timeout = DEFAULT_TIMEOUT)
   since = Time.now

test/test_exec.rb

@@ -403,7 +403,7 @@ class TestExec < TestInteractive
   end
 
   def test_become
-    tmux.send_keys "seq 100 | #{FZF} --bind 'enter:become:seq {} | #{FZF}'", :Enter
+    tmux.send_keys "seq 100 | fzf --bind 'enter:become:seq {} | fzf'", :Enter
     tmux.until { |lines| assert_equal 100, lines.match_count }
     tmux.send_keys 999
     tmux.until { |lines| assert_equal 0, lines.match_count }

test/test_layout.rb

@@ -178,8 +178,8 @@ class TestLayout < TestInteractive
     tmux.send_keys 'seq 3 | fzf --height ~100% --info=inline --border rounded', :Enter
     expected = <<~OUTPUT
       ╭──────────
-      │   3
-      │   2
+      │ ▌ 3
+      │ ▌ 2
       │ > 1
       │ >   < 3/3
       ╰──────────
@@ -197,8 +197,8 @@ class TestLayout < TestInteractive
       │ │
       │ │
       │ ╰────────
-      │   3
-      │   2
+      │ ▌ 3
+      │ ▌ 2
       │ > 1
       │ >   < 3/3
       ╰──────────
@@ -247,7 +247,7 @@ class TestLayout < TestInteractive
     tmux.send_keys 'seq 100 | fzf --height ~5 --info=inline --border rounded', :Enter
     expected = <<~OUTPUT
       ╭──────────────
-      │   2
+      │ ▌ 2
       │ > 1
       │ >   < 100/100
       ╰──────────────
@@ -275,12 +275,12 @@ class TestLayout < TestInteractive
   def test_fzf_multi_line
     tmux.send_keys %[(echo -en '0\\0'; echo -en '1\\n2\\0'; seq 1000) | fzf --read0 --multi --bind load:select-all --border rounded], :Enter
     block = <<~BLOCK
-      │  ┃998
-      │  ┃999
-      │  ┃1000
-      │  ╹
-      │  ╻1
-      │  ╹2
+      │ ▌┃998
+      │ ▌┃999
+      │ ▌┃1000
+      │ ▌╹
+      │ ▌╻1
+      │ ▌╹2
       │ >>0
       │   3/3 (3)
       │ >
@@ -312,11 +312,11 @@ class TestLayout < TestInteractive
       │ >
       │   3/3 (3)
       │ >>0
-      │  ╻1
-      │  ╹2
-      │  ╻1
-      │  ┃2
-      │  ┃3
+      │ ▌╻1
+      │ ▌╹2
+      │ ▌╻1
+      │ ▌┃2
+      │ ▌┃3
     BLOCK
     tmux.until { assert_block(block, it) }
   end
@@ -1156,6 +1156,42 @@ class TestLayout < TestInteractive
     tmux.until { assert_block(block, it) }
   end
 
+  def test_gutter_default
+    tmux.send_keys %(seq 10 | fzf), :Enter
+    block = <<~BLOCK
+      ▌ 3
+      ▌ 2
+      > 1
+        10/10
+      >
+    BLOCK
+    tmux.until { assert_block(block, it) }
+  end
+
+  def test_gutter_default_no_unicode
+    tmux.send_keys %(seq 10 | fzf --no-unicode), :Enter
+    block = <<~BLOCK
+        3
+        2
+      > 1
+        10/10
+      >
+    BLOCK
+    tmux.until { assert_block(block, it) }
+  end
+
+  def test_gutter_custom
+    tmux.send_keys %(seq 10 | fzf --gutter x), :Enter
+    block = <<~BLOCK
+      x 3
+      x 2
+      > 1
+        10/10
+      >
+    BLOCK
+    tmux.until { assert_block(block, it) }
+  end
+
   def test_combinations
     skip unless ENV['LONGTEST']