From aa259fdc1910acbbeef4562bf41a762ecb428828 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Tue, 21 Oct 2025 19:49:43 +0900
Subject: [PATCH] Fix regression in `--no-color` / `NO_COLOR` theme

Fix #4561
---
 CHANGELOG.md   | 14 ++++++++++----
 src/options.go |  4 +++-
 src/tui/tui.go |  7 ++++---
 3 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65abb54d..c4153831 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,12 @@
 CHANGELOG
 =========
 
+0.66.1
+------
+- Bug fixes
+    - Fixed a bug preventing 'ctrl-h' from being bound to an action (#4556)
+    - Fixed `--no-color` / `NO_COLOR` theme
+
 0.66.0
 ------
 
@@ -35,10 +41,10 @@ This version introduces many new features centered around the new "raw" mode.
 
 This version introduces a new "raw" mode (named so because it shows the list
 "unfiltered"). In raw mode, non-matching items stay in their original positions,
-but appear dimmed. This allows you see surrounding items of a match and better
-understand the context of it. You can enable raw mode by default with `--raw`,
-but it's often more useful when toggled dynamically with the `toggle-raw`
-action.
+but appear dimmed. This allows you to see the surrounding items of a match and
+better understand the context of it. You can enable raw mode by default with
+`--raw`, but it's often more useful when toggled dynamically with the
+`toggle-raw` action.
 
 ```sh
 tree | fzf --reverse --bind alt-r:toggle-raw
diff --git a/src/options.go b/src/options.go
index e9cc0127..2ae004ed 100644
--- a/src/options.go
+++ b/src/options.go
@@ -673,9 +673,10 @@ func defaultPreviewOpts(command string) previewOpts {
 }
 
 func defaultOptions() *Options {
-	var theme *tui.ColorTheme
+	var theme, baseTheme *tui.ColorTheme
 	if os.Getenv("NO_COLOR") != "" {
 		theme = tui.NoColorTheme
+		baseTheme = tui.NoColorTheme
 	} else {
 		theme = tui.EmptyTheme
 	}
@@ -703,6 +704,7 @@ func defaultOptions() *Options {
 		Ansi:         false,
 		Mouse:        true,
 		Theme:        theme,
+		BaseTheme:    baseTheme,
 		Black:        false,
 		Bold:         true,
 		MinHeight:    -10,
diff --git a/src/tui/tui.go b/src/tui/tui.go
index 4e285451..49b828f4 100644
--- a/src/tui/tui.go
+++ b/src/tui/tui.go
@@ -295,8 +295,9 @@ func (a ColorAttr) IsColorDefined() bool {
 }
 
 func (a ColorAttr) IsAttrDefined() bool {
-	return a.Attr != AttrUndefined
+	return a.Attr&^BoldForce != AttrUndefined
 }
+
 func (a ColorAttr) IsUndefined() bool {
 	return !a.IsColorDefined() && !a.IsAttrDefined()
 }
@@ -1156,12 +1157,12 @@ func InitTheme(theme *ColorTheme, baseTheme *ColorTheme, boldify bool, forceBlac
 	// e.g. fzf --delimiter / --nth -1 --color fg:dim,nth:regular
 	current := theme.Current
 	if !baseTheme.Colored && current.IsUndefined() {
-		current.Attr = Reverse
+		current.Attr |= Reverse
 	}
 	theme.Current = theme.Fg.Merge(o(baseTheme.Current, current))
 	currentMatch := theme.CurrentMatch
 	if !baseTheme.Colored && currentMatch.IsUndefined() {
-		currentMatch.Attr = Reverse | Underline
+		currentMatch.Attr |= Reverse | Underline
 	}
 	theme.CurrentMatch = o(baseTheme.CurrentMatch, currentMatch)
 	theme.Spinner = o(baseTheme.Spinner, theme.Spinner)