0.62.0

Test cases:

1. 'jump' should show alternating background colors even when 'alt-bg' is
not defined as before.

  go run main.go --bind load:jump

Two differences:
  * The alternating lines will not be in bold (was a bug)
  * The marker column will not be rendered with alternating background color

2. Use alternating background color when 'alt-bg' is set

  go run main.go --color bg:238,alt-bg:237
  go run main.go --color bg:238,alt-bg:237 --highlight-line

3. 'selected-bg' should take precedence

  go run main.go --color bg:238,alt-bg:237,selected-bg:232 \
                 --highlight-line --multi --bind 'load:select+up+select+up'

4. Should work with text with ANSI colors

  declare -f | perl -0777 -pe 's/^}\n/}\0/gm' |
    bat --plain --language bash --color always |
    go run main.go --read0 --ansi --reverse --multi \
                   --color bg:237,alt-bg:238,current-bg:236 --highlight-line

---

Close #4354
Fix #4372

CHANGELOG.md

@@ -1,6 +1,43 @@
 CHANGELOG
 =========
 
+0.62.0
+------
+- Relaxed the `--color` option syntax to allow whitespace-separated entries (in addition to commas), making multi-line definitions easier to write and read
+  ```sh
+  # seoul256-light
+  fzf --style full --color='
+    fg:#616161 fg+:#616161
+    bg:#ffffff bg+:#e9e9e9 alt-bg:#f1f1f1
+    hl:#719872 hl+:#719899
+    pointer:#e12672 marker:#e17899
+    header:#719872
+    spinner:#719899 info:#727100
+    prompt:#0099bd query:#616161
+    border:#e1e1e1
+  '
+  ```
+- Added `alt-bg` color to create striped lines to visually separate rows
+  ```sh
+  fzf --color bg:237,alt-bg:238,current-bg:236 --highlight-line
+
+  declare -f | perl -0777 -pe 's/^}\n/}\0/gm' |
+    bat --plain --language bash --color always |
+    fzf --read0 --ansi --reverse --multi \
+        --color bg:237,alt-bg:238,current-bg:236 --highlight-line
+  ```
+- [fish] Improvements in CTRL-R binding (@bitraid)
+    - You can trigger CTRL-R in the middle of a command to insert the selected item
+    - You can delete history items with SHIFT-DEL
+- Bug fixes and improvements
+    - Fixed unnecessary 100ms delay after `reload` (#4364)
+    - Fixed `selected-bg` not applied to colored items (#4372)
+
+0.61.3
+------
+- Reverted #4351 as it caused `tmux run-shell 'fzf --tmux'` to fail (#4559 #4560)
+- More environment variables for child processes (#4356)
+
 0.61.2
 ------
 - Fixed panic when using header border without pointer/marker (@phanen)

README-VIM.md

@@ -155,6 +155,7 @@ let g:fzf_layout = { 'window': '10new' }
 let g:fzf_colors =
 \ { 'fg':      ['fg', 'Normal'],
   \ 'bg':      ['bg', 'Normal'],
+  \ 'query':   ['fg', 'Normal'],
   \ 'hl':      ['fg', 'Comment'],
   \ 'fg+':     ['fg', 'CursorLine', 'CursorColumn', 'Normal'],
   \ 'bg+':     ['bg', 'CursorLine', 'CursorColumn'],

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.61.2
+version=0.62.0
 auto_completion=
 key_bindings=
 update_config=2

install.ps1

@@ -1,4 +1,4 @@
-$version="0.61.2"
+$version="0.62.0"
 
 $fzf_base=Split-Path -Parent $MyInvocation.MyCommand.Definition
 

main.go

@@ -11,7 +11,7 @@ import (
 	"github.com/junegunn/fzf/src/protector"
 )
 
-var version = "0.61"
+var version = "0.62"
 var revision = "devel"
 
 //go:embed shell/key-bindings.bash

man/man1/fzf-tmux.1

@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf\-tmux 1 "Apr 2025" "fzf 0.61.2" "fzf\-tmux - open fzf in tmux split pane"
+.TH fzf\-tmux 1 "May 2025" "fzf 0.62.0" "fzf\-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf\-tmux - open fzf in tmux split pane

man/man1/fzf.1

@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Apr 2025" "fzf 0.61.2" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "May 2025" "fzf 0.62.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -242,7 +242,7 @@ Apply a style preset [default|minimal|full[:BORDER_STYLE]]
 .TP
 .BI "\-\-color=" "[BASE_SCHEME][,COLOR_NAME[:ANSI_COLOR][:ANSI_ATTRIBUTES]]..."
 Color configuration. The name of the base color scheme is followed by custom
-color mappings.
+color mappings. Each entry is separated by a comma and/or whitespaces.
 
 .RS
 .B BASE SCHEME:
@@ -270,6 +270,7 @@ color mappings.
     \fBcurrent\-bg (bg+)      \fRBackground (current line)
       \fBgutter              \fRGutter on the left
     \fBcurrent\-hl (hl+)      \fRHighlighted substrings (current line)
+    \fBalt\-bg                \fRAlternate background color to create striped lines
     \fBquery (input\-fg)      \fRQuery string
       \fBdisabled            \fRQuery string when search is disabled (\fB\-\-disabled\fR)
     \fBinfo                  \fRInfo line (match counters)
@@ -337,7 +338,19 @@ color mappings.
      # Seoul256 theme with 24-bit colors
      fzf \-\-color='bg:#4B4B4B,bg+:#3F3F3F,info:#BDBB72,border:#6B6B6B,spinner:#98BC99' \\
          \-\-color='hl:#719872,fg:#D9D9D9,header:#719872,fg+:#D9D9D9' \\
-         \-\-color='pointer:#E12672,marker:#E17899,prompt:#98BEDE,hl+:#98BC99'\fR
+         \-\-color='pointer:#E12672,marker:#E17899,prompt:#98BEDE,hl+:#98BC99'
+
+     # Seoul256 light theme with 24-bit colors, each entry separated by whitespaces
+     fzf \-\-style full \-\-color='
+       fg:#616161 fg+:#616161
+       bg:#ffffff bg+:#e9e9e9 alt-bg:#f1f1f1
+       hl:#719872 hl+:#719899
+       pointer:#e12672 marker:#e17899
+       header:#719872
+       spinner:#719899 info:#727100
+       prompt:#0099bd query:#616161
+       border:#e1e1e1
+     '\fR
 .RE
 .TP
 .B "\-\-no\-color"
@@ -1279,10 +1292,20 @@ fzf exports the following environment variables to its child processes.
 .br
 .BR FZF_PROMPT "          Prompt string"
 .br
+.BR FZF_GHOST "           Ghost string"
+.br
+.BR FZF_POINTER "         Pointer string"
+.br
 .BR FZF_PREVIEW_LABEL "   Preview label string"
 .br
 .BR FZF_BORDER_LABEL "    Border label string"
 .br
+.BR FZF_LIST_LABEL "      List label string"
+.br
+.BR FZF_INPUT_LABEL "     Input label string"
+.br
+.BR FZF_HEADER_LABEL "    Header label string"
+.br
 .BR FZF_ACTION "          The name of the last action performed"
 .br
 .BR FZF_KEY "             The name of the last key pressed"

shell/key-bindings.fish

@@ -14,12 +14,21 @@
 
 # Key bindings
 # ------------
-# For compatibility with fish versions down to 3.1.2, the script does not use:
+# The oldest supported fish version is 3.1b1. To maintain compatibility, the
-# - The -f/--function switch of command: set
+# command substitution syntax $(cmd) should never be used, even behind a version
-# - The process substitution syntax: $(cmd)
+# check, otherwise the source command will fail on fish versions older than 3.4.0.
-# - Ranges that omit start/end indexes: $var[$start..] $var[..$end] $var[..]
 function fzf_key_bindings
 
+  # Check fish version
+  set -l fish_ver (string match -r '^(\d+).(\d+)' $version 2> /dev/null; or echo 0\n0\n0)
+  if test \( "$fish_ver[2]" -lt 3 \) -o \( "$fish_ver[2]" -eq 3 -a "$fish_ver[3]" -lt 1 \)
+    echo "This script requires fish version 3.1b1 or newer." >&2
+    return 1
+  else if not type -q fzf
+    echo "fzf was not found in path." >&2
+    return 1
+  end
+
   function __fzf_defaults
     # $argv[1]: Prepend to FZF_DEFAULT_OPTS_FILE and FZF_DEFAULT_OPTS
     # $argv[2..]: Append to FZF_DEFAULT_OPTS_FILE and FZF_DEFAULT_OPTS
@@ -135,22 +144,21 @@ function fzf_key_bindings
     set -lx FZF_DEFAULT_COMMAND "$FZF_CTRL_T_COMMAND"
     set -lx FZF_DEFAULT_OPTS_FILE
 
-    if set -l result (eval (__fzfcmd) --walker-root=$dir --query=$fzf_query | string split0)
+    set -l result (eval (__fzfcmd) --walker-root=$dir --query=$fzf_query | string split0)
-      # Remove last token from commandline.
+    and commandline -rt -- (string join -- ' ' $prefix(string escape -- $result))' '
-      commandline -t ''
-      for i in $result
-        commandline -it -- $prefix(string escape -- $i)' '
-      end
-    end
 
     commandline -f repaint
   end
 
   function fzf-history-widget -d "Show command history"
-    set -l fzf_query (commandline | string escape)
+    set -l -- command_line (commandline)
+    set -l -- current_line (commandline -L)
+    set -l -- total_lines (count $command_line)
+    set -l -- fzf_query (string escape -- $command_line[$current_line])
 
     set -lx FZF_DEFAULT_OPTS (__fzf_defaults '' \
       '--nth=2..,.. --scheme=history --multi --wrap-sign="\t↳ "' \
+      '--bind=\'shift-delete:execute-silent(eval history delete --exact --case-sensitive -- (string escape -n -- {+} | string replace -r -a "^\d*\\\\\\t|(?<=\\\\\\n)\\\\\\t" ""))+reload(eval $FZF_DEFAULT_COMMAND)\'' \
       "--bind=ctrl-r:toggle-sort --highlight-line $FZF_CTRL_R_OPTS" \
       '--accept-nth=2.. --read0 --print0 --with-shell='(status fish-path)\\ -c)
 
@@ -172,9 +180,13 @@ function fzf_key_bindings
     test -z "$fish_private_mode"; and builtin history merge
 
     if set -l result (eval $FZF_DEFAULT_COMMAND \| (__fzfcmd) --query=$fzf_query | string split0)
-      commandline -- (string replace -a -- \n\t \n $result[1])
+      if test "$total_lines" -eq 1
-      test (count $result) -gt 1; and for i in $result[2..-1]
+        commandline -- (string replace -a -- \n\t \n $result)
-        commandline -i -- (string replace -a -- \n\t \n \n$i)
+      else
+        set -l a (math $current_line - 1)
+        set -l b (math $current_line + 1)
+        commandline -- $command_line[1..$a] (string replace -a -- \n\t \n $result)
+        commandline -a -- '' $command_line[$b..-1]
       end
     end
 

src/core.go

@@ -39,7 +39,7 @@ func (r revision) compatible(other revision) bool {
 // Run starts fzf
 func Run(opts *Options) (int, error) {
 	if opts.Filter == nil {
-		if opts.Tmux != nil && len(os.Getenv("TMUX")) > 0 && len(os.Getenv("TMUX_PANE")) > 0 && opts.Tmux.index >= opts.Height.index {
+		if opts.Tmux != nil && len(os.Getenv("TMUX")) > 0 && opts.Tmux.index >= opts.Height.index {
 			return runTmux(os.Args, opts)
 		}
 
@@ -295,6 +295,7 @@ func Run(opts *Options) (int, error) {
 	// Event coordination
 	reading := true
 	ticks := 0
+	startTick := 0
 	var nextCommand *commandSpec
 	var nextEnviron []string
 	eventBox.Watch(EvtReadNew)
@@ -321,6 +322,7 @@ func Run(opts *Options) (int, error) {
 			clearDenylist()
 		}
 		reading = true
+		startTick = ticks
 		chunkList.Clear()
 		itemIndex = 0
 		inputRevision.bumpMajor()
@@ -509,7 +511,7 @@ func Run(opts *Options) (int, error) {
 		}
 		if delay && reading {
 			dur := util.DurWithin(
-				time.Duration(ticks)*coordinatorDelayStep,
+				time.Duration(ticks-startTick)*coordinatorDelayStep,
 				0, coordinatorDelayMax)
 			time.Sleep(dur)
 		}

src/options.go

@@ -1184,7 +1184,12 @@ func parseTheme(defaultTheme *tui.ColorTheme, str string) (*tui.ColorTheme, erro
 	var err error
 	theme := dupeTheme(defaultTheme)
 	rrggbb := regexp.MustCompile("^#[0-9a-fA-F]{6}$")
-	for _, str := range strings.Split(strings.ToLower(str), ",") {
+	comma := regexp.MustCompile(`[\s,]+`)
+	for _, str := range comma.Split(strings.ToLower(str), -1) {
+		str = strings.TrimSpace(str)
+		if len(str) == 0 {
+			continue
+		}
 		switch str {
 		case "dark":
 			theme = dupeTheme(tui.Dark256)
@@ -1295,6 +1300,8 @@ func parseTheme(defaultTheme *tui.ColorTheme, str string) (*tui.ColorTheme, erro
 				mergeAttr(&theme.Current)
 			case "current-bg", "bg+":
 				mergeAttr(&theme.DarkBg)
+			case "alt-bg":
+				mergeAttr(&theme.AltBg)
 			case "selected-fg":
 				mergeAttr(&theme.SelectedFg)
 			case "selected-bg":

src/options_test.go

@@ -333,7 +333,7 @@ func TestColorSpec(t *testing.T) {
 		t.Errorf("colors should now be equivalent: %v, %v", tui.Dark256, customized)
 	}
 
-	customized, _ = parseTheme(theme, "fg:231,dark,bg:232")
+	customized, _ = parseTheme(theme, "fg:231,dark   bg:232")
 	if customized.Fg != tui.Dark256.Fg || customized.Bg == tui.Dark256.Bg {
 		t.Errorf("color not customized")
 	}

src/proxy.go

@@ -98,8 +98,7 @@ func runProxy(commandPrefix string, cmdBuilder func(temp string, needBash bool)
 		validIdentifier := regexp.MustCompile(`^[a-zA-Z_][a-zA-Z0-9_]*$`)
 		for _, pairStr := range os.Environ() {
 			pair := strings.SplitN(pairStr, "=", 2)
-			// TMUX_PANE is never set inside a tmux popup, and should not be set so as to not be detected as a regular tmux pane
+			if validIdentifier.MatchString(pair[0]) {
-			if validIdentifier.MatchString(pair[0]) && pair[0] != "TMUX_PANE" {
 				exports = append(exports, fmt.Sprintf("export %s=%s", pair[0], escapeSingleQuote(pair[1])))
 			} else if strings.HasPrefix(pair[0], "BASH_FUNC_") && strings.HasSuffix(pair[0], "%%") {
 				name := pair[0][10 : len(pair[0])-2]

src/result.go

@@ -119,7 +119,7 @@ func minRank() Result {
 	return Result{item: &minItem, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
 }
 
-func (result *Result) colorOffsets(matchOffsets []Offset, nthOffsets []Offset, theme *tui.ColorTheme, colBase tui.ColorPair, colMatch tui.ColorPair, attrNth tui.Attr, current bool) []colorOffset {
+func (result *Result) colorOffsets(matchOffsets []Offset, nthOffsets []Offset, theme *tui.ColorTheme, colBase tui.ColorPair, colMatch tui.ColorPair, attrNth tui.Attr) []colorOffset {
 	itemColors := result.item.Colors()
 
 	// No ANSI codes
@@ -182,18 +182,10 @@ func (result *Result) colorOffsets(matchOffsets []Offset, nthOffsets []Offset, t
 		fg := ansi.color.fg
 		bg := ansi.color.bg
 		if fg == -1 {
-			if current {
+			fg = colBase.Fg()
-				fg = theme.Current.Color
-			} else {
-				fg = theme.Fg.Color
-			}
 		}
 		if bg == -1 {
-			if current {
+			bg = colBase.Bg()
-				bg = theme.DarkBg.Color
-			} else {
-				bg = theme.Bg.Color
-			}
 		}
 		return tui.NewColorPair(fg, bg, ansi.color.attr).MergeAttr(base)
 	}

src/result_test.go

@@ -131,7 +131,7 @@ func TestColorOffset(t *testing.T) {
 
 	colBase := tui.NewColorPair(89, 189, tui.AttrUndefined)
 	colMatch := tui.NewColorPair(99, 199, tui.AttrUndefined)
-	colors := item.colorOffsets(offsets, nil, tui.Dark256, colBase, colMatch, tui.AttrUndefined, true)
+	colors := item.colorOffsets(offsets, nil, tui.Dark256, colBase, colMatch, tui.AttrUndefined)
 	assert := func(idx int, b int32, e int32, c tui.ColorPair) {
 		o := colors[idx]
 		if o.offset[0] != b || o.offset[1] != e || o.color != c {
@@ -158,7 +158,7 @@ func TestColorOffset(t *testing.T) {
 
 	nthOffsets := []Offset{{37, 39}, {42, 45}}
 	for _, attr := range []tui.Attr{tui.AttrRegular, tui.StrikeThrough} {
-		colors = item.colorOffsets(offsets, nthOffsets, tui.Dark256, colRegular, colUnderline, attr, true)
+		colors = item.colorOffsets(offsets, nthOffsets, tui.Dark256, colRegular, colUnderline, attr)
 
 		// [{[0 5] {1 5 0}} {[5 15] {1 5 8}} {[15 20] {1 5 0}}
 		//  {[22 25] {2 6 1}} {[25 27] {2 6 9}} {[27 30] {-1 -1 8}}

src/terminal.go

@@ -1091,9 +1091,13 @@ func (t *Terminal) environImpl(forPreview bool) []string {
 	env = append(env, "FZF_ACTION="+t.lastAction.Name())
 	env = append(env, "FZF_KEY="+t.lastKey)
 	env = append(env, "FZF_PROMPT="+string(t.promptString))
+	env = append(env, "FZF_GHOST="+string(t.ghost))
+	env = append(env, "FZF_POINTER="+string(t.pointer))
 	env = append(env, "FZF_PREVIEW_LABEL="+t.previewLabelOpts.label)
 	env = append(env, "FZF_BORDER_LABEL="+t.borderLabelOpts.label)
 	env = append(env, "FZF_LIST_LABEL="+t.listLabelOpts.label)
+	env = append(env, "FZF_INPUT_LABEL="+t.inputLabelOpts.label)
+	env = append(env, "FZF_HEADER_LABEL="+t.headerLabelOpts.label)
 	if len(t.nthCurrent) > 0 {
 		env = append(env, "FZF_NTH="+RangesToString(t.nthCurrent))
 	}
@@ -1254,7 +1258,7 @@ func (t *Terminal) ansiLabelPrinter(str string, color *tui.ColorPair, fill bool)
 	printFn := func(window tui.Window, limit int) {
 		if offsets == nil {
 			// tui.Col* are not initialized until renderer.Init()
-			offsets = result.colorOffsets(nil, nil, t.theme, *color, *color, t.nthAttr, false)
+			offsets = result.colorOffsets(nil, nil, t.theme, *color, *color, t.nthAttr)
 		}
 		for limit > 0 {
 			if length > limit {
@@ -2787,17 +2791,28 @@ func (t *Terminal) printItem(result Result, line int, maxLine int, index int, cu
 	_, selected := t.selected[item.Index()]
 	label := ""
 	extraWidth := 0
+	alt := false
+	altBg := t.theme.AltBg
+	selectedBg := selected && t.theme.SelectedBg != t.theme.ListBg
 	if t.jumping != jumpDisabled {
 		if index < len(t.jumpLabels) {
 			// Striped
-			current = index%2 == 0
+			if !altBg.IsColorDefined() {
+				altBg = t.theme.DarkBg
+				alt = index%2 == 0
+			} else {
+				alt = index%2 == 1
+			}
 			label = t.jumpLabels[index:index+1] + strings.Repeat(" ", util.Max(0, t.pointerLen-1))
 			if t.pointerLen == 0 {
 				extraWidth = 1
 			}
 		}
-	} else if current {
+	} else {
-		label = t.pointer
+		if current {
+			label = t.pointer
+		}
+		alt = !selectedBg && altBg.IsColorDefined() && index%2 == 1
 	}
 
 	// Avoid unnecessary redraw
@@ -2824,10 +2839,12 @@ func (t *Terminal) printItem(result Result, line int, maxLine int, index int, cu
 	maxWidth := t.window.Width() - (t.pointerLen + t.markerLen + 1)
 	postTask := func(lineNum int, width int, wrapped bool, forceRedraw bool) {
 		width += extraWidth
-		if (current || selected) && t.highlightLine {
+		if (current || selected || alt) && t.highlightLine {
 			color := tui.ColSelected
 			if current {
 				color = tui.ColCurrent
+			} else if alt {
+				color = color.WithBg(altBg)
 			}
 			fillSpaces := maxWidth - width
 			if wrapped {
@@ -2925,6 +2942,10 @@ func (t *Terminal) printItem(result Result, line int, maxLine int, index int, cu
 			base = tui.ColNormal
 			match = tui.ColMatch
 		}
+		if alt {
+			base = base.WithBg(altBg)
+			match = match.WithBg(altBg)
+		}
 		finalLineNum = t.printHighlighted(result, base, match, false, true, line, maxLine, forceRedraw, preTask, postTask)
 	}
 	for i := 0; i < t.gap && finalLineNum < maxLine; i++ {
@@ -3023,7 +3044,7 @@ func (t *Terminal) printHighlighted(result Result, colBase tui.ColorPair, colMat
 			sort.Sort(ByOrder(nthOffsets))
 		}
 	}
-	allOffsets := result.colorOffsets(charOffsets, nthOffsets, t.theme, colBase, colMatch, t.nthAttr, current)
+	allOffsets := result.colorOffsets(charOffsets, nthOffsets, t.theme, colBase, colMatch, t.nthAttr)
 
 	maxLines := 1
 	if t.canSpanMultiLines() {

src/tui/tui.go

@@ -308,6 +308,12 @@ func (p ColorPair) WithAttr(attr Attr) ColorPair {
 	return dup
 }
 
+func (p ColorPair) WithBg(bg ColorAttr) ColorPair {
+	dup := p
+	bgPair := ColorPair{colUndefined, bg.Color, bg.Attr}
+	return dup.Merge(bgPair)
+}
+
 func (p ColorPair) MergeAttr(other ColorPair) ColorPair {
 	return p.WithAttr(other.attr)
 }
@@ -328,6 +334,7 @@ type ColorTheme struct {
 	Bg               ColorAttr
 	ListFg           ColorAttr
 	ListBg           ColorAttr
+	AltBg            ColorAttr
 	Nth              ColorAttr
 	SelectedFg       ColorAttr
 	SelectedBg       ColorAttr
@@ -735,6 +742,7 @@ func EmptyTheme() *ColorTheme {
 		Bg:               ColorAttr{colUndefined, AttrUndefined},
 		ListFg:           ColorAttr{colUndefined, AttrUndefined},
 		ListBg:           ColorAttr{colUndefined, AttrUndefined},
+		AltBg:            ColorAttr{colUndefined, AttrUndefined},
 		SelectedFg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedBg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedMatch:    ColorAttr{colUndefined, AttrUndefined},
@@ -780,6 +788,7 @@ func NoColorTheme() *ColorTheme {
 		Bg:               ColorAttr{colDefault, AttrUndefined},
 		ListFg:           ColorAttr{colDefault, AttrUndefined},
 		ListBg:           ColorAttr{colDefault, AttrUndefined},
+		AltBg:            ColorAttr{colUndefined, AttrUndefined},
 		SelectedFg:       ColorAttr{colDefault, AttrUndefined},
 		SelectedBg:       ColorAttr{colDefault, AttrUndefined},
 		SelectedMatch:    ColorAttr{colDefault, AttrUndefined},
@@ -825,6 +834,7 @@ func init() {
 		Bg:               ColorAttr{colDefault, AttrUndefined},
 		ListFg:           ColorAttr{colUndefined, AttrUndefined},
 		ListBg:           ColorAttr{colUndefined, AttrUndefined},
+		AltBg:            ColorAttr{colUndefined, AttrUndefined},
 		SelectedFg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedBg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedMatch:    ColorAttr{colUndefined, AttrUndefined},
@@ -864,6 +874,7 @@ func init() {
 		Bg:               ColorAttr{colDefault, AttrUndefined},
 		ListFg:           ColorAttr{colUndefined, AttrUndefined},
 		ListBg:           ColorAttr{colUndefined, AttrUndefined},
+		AltBg:            ColorAttr{colUndefined, AttrUndefined},
 		SelectedFg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedBg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedMatch:    ColorAttr{colUndefined, AttrUndefined},
@@ -903,6 +914,7 @@ func init() {
 		Bg:               ColorAttr{colDefault, AttrUndefined},
 		ListFg:           ColorAttr{colUndefined, AttrUndefined},
 		ListBg:           ColorAttr{colUndefined, AttrUndefined},
+		AltBg:            ColorAttr{colUndefined, AttrUndefined},
 		SelectedFg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedBg:       ColorAttr{colUndefined, AttrUndefined},
 		SelectedMatch:    ColorAttr{colUndefined, AttrUndefined},

test/test_core.rb

@@ -1632,14 +1632,16 @@ class TestCore < TestInteractive
   end
 
   def test_env_vars
-    def to_vars(lines)
+    def env_vars
-      lines.select { it.start_with?('FZF_') }.to_h do
+      return {} unless File.exist?(tempname)
-        key, val = it.split('=', 2)
+
+      File.readlines(tempname).select { it.start_with?('FZF_') }.to_h do
+        key, val = it.chomp.split('=', 2)
         [key.to_sym, val]
       end
     end
 
-    tmux.send_keys %(seq 100 | #{FZF} --multi --reverse --preview-window up,99%,noborder --preview 'env | grep ^FZF_ | sort' --no-input --bind enter:show-input+refresh-preview,space:disable-search+refresh-preview), :Enter
+    tmux.send_keys %(seq 100 | #{FZF} --multi --reverse --preview-window 0 --preview 'env | grep ^FZF_ | sort > #{tempname}' --no-input --bind enter:show-input+refresh-preview,space:disable-search+refresh-preview), :Enter
     expected = {
       FZF_TOTAL_COUNT: '100',
       FZF_MATCH_COUNT: '100',
@@ -1648,31 +1650,32 @@ class TestCore < TestInteractive
       FZF_KEY: '',
       FZF_POS: '1',
       FZF_QUERY: '',
-      FZF_PROMPT: '>',
+      FZF_POINTER: '>',
+      FZF_PROMPT: '> ',
       FZF_INPUT_STATE: 'hidden'
     }
-    tmux.until do |lines|
+    tmux.until do
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys :Enter
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_INPUT_STATE: 'enabled', FZF_ACTION: 'show-input', FZF_KEY: 'enter')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys :Tab, :Tab
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_ACTION: 'toggle-down', FZF_KEY: 'tab', FZF_POS: '3', FZF_SELECT_COUNT: '2')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys '99'
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_ACTION: 'char', FZF_KEY: '9', FZF_QUERY: '99', FZF_MATCH_COUNT: '1', FZF_POS: '1')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
     tmux.send_keys :Space
-    tmux.until do |lines|
+    tmux.until do
       expected.merge!(FZF_INPUT_STATE: 'disabled', FZF_ACTION: 'disable-search', FZF_KEY: 'space')
-      assert_equal expected, to_vars(lines).slice(*expected.keys)
+      assert_equal expected, env_vars.slice(*expected.keys)
     end
   end