diff --git a/highlight.go b/highlight.go
index 91f52fb..e3f9fb0 100644
--- a/highlight.go
+++ b/highlight.go
@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"fmt"
 	"io"
+	"os"
 	"regexp"
 	"strings"
 )
@@ -17,9 +18,16 @@ const (
 	ansiInlineCode = "\033[33m"
 	ansiBlockQuote = "\033[36m"
 	ansiListMarker = "\033[36m"
-	ansiLineBg     = "\033[40m"
 	ansiReset      = "\033[0m"
 )
+var ansiLineBg = func() string {
+	switch os.Getenv("NOTESIUM_FINDER_THEME") {
+	case "light":
+		return "\033[48;5;7m"
+	default:
+		return "\033[40m"
+	}
+}()
 var (
 	reBold           = regexp.MustCompile(`\*\*(.*?)\*\*`)
 	reBoldAlt        = regexp.MustCompile(`__(.*?)__`)
diff --git a/notesium.go b/notesium.go
index 9bc46d2..770a932 100644
--- a/notesium.go
+++ b/notesium.go
@@ -341,6 +341,15 @@ func notesiumFinder(dir string, opts finderOptions) {
 		log.Fatal(err)
 	}
 
+	theme := os.Getenv("NOTESIUM_FINDER_THEME")
+	var fzfColor string
+	switch theme {
+	case "light":
+		fzfColor = "bg:15,bg+:7,fg:241,fg+:241,hl:4,hl+:2,pointer:9,info:6"
+	default:
+		fzfColor = "bg:8,bg+:0,fg:12,fg+:12,hl:11,hl+:3,pointer:9,info:3"
+	}
+
 	optsFzf := []string{
 		"--ansi",
 		"--exact",
@@ -353,7 +362,7 @@ func notesiumFinder(dir string, opts finderOptions) {
 		"--pointer=>",
 		"--delimiter=:",
 		"--with-nth=3..",
-		"--color=bg:8,bg+:0,fg:12,fg+:12,hl:11,hl+:3,pointer:9,info:3",
+		fmt.Sprintf("--color=%s", fzfColor),
 		fmt.Sprintf("--prompt=%s> ", opts.prompt),
 	}
 
diff --git a/vim/plugin/notesium.vim b/vim/plugin/notesium.vim
index 08cc48c..78626d7 100644
--- a/vim/plugin/notesium.vim
+++ b/vim/plugin/notesium.vim
@@ -45,6 +45,9 @@ let $NOTESIUM_DIR = notesium#get_notesium_dir()
 if has('nvim')
 
   function! notesium#finder(config) abort
+    " Set light or dark theme
+    let $NOTESIUM_FINDER_THEME = &background
+
     " Prepare command
     let l:cmd = g:notesium_bin . ' finder ' . get(a:config, 'options', '')
     let l:cmd .= ' -- ' . get(a:config, 'input', '')
@@ -106,6 +109,9 @@ if has('nvim')
 else
 
   function! notesium#finder(config) abort
+    " Set light or dark theme
+    let $NOTESIUM_FINDER_THEME = &background
+
     " Prepare the command
     let l:cmd = g:notesium_bin . ' finder ' . get(a:config, 'options', '')
     let l:cmd .= ' -- ' . get(a:config, 'input', '')
@@ -155,12 +161,12 @@ command! -nargs=* NotesiumInsertLink
   \   'input': 'list ' . join(map(split(<q-args>), 'shellescape(v:val)'), ' '),
   \   'options': '--prompt=NotesiumInsertLink',
   \   'callback': function('notesium#finder_callback_insertlink'),
-  \   'window': (&columns > 79 ? g:notesium_window_small : g:notesium_window) })
+  \   'window': (&columns > 89 ? g:notesium_window_small : g:notesium_window) })
 
 command! -nargs=* NotesiumList
   \ call notesium#finder({
   \   'input': 'list ' . join(map(split(<q-args>), 'shellescape(v:val)'), ' '),
-  \   'options': '--prompt=NotesiumList' . (&columns > 79 ? ' --preview' : ''),
+  \   'options': '--prompt=NotesiumList' . (&columns > 89 ? ' --preview' : ''),
   \   'callback': function('notesium#finder_callback_editfile'),
   \   'window': g:notesium_window })
 
@@ -170,14 +176,14 @@ command! -bang -nargs=* NotesiumLinks
   \ let s:args = <q-args> . (!empty(s:filename) ? ' ' . s:filename : '') |
   \ call notesium#finder({
   \   'input': 'links ' . join(map(split(s:args), 'shellescape(v:val)'), ' '),
-  \   'options': '--prompt=NotesiumLinks' . (&columns > 79 ? ' --preview' : ''),
+  \   'options': '--prompt=NotesiumLinks' . (&columns > 89 ? ' --preview' : ''),
   \   'callback': function('notesium#finder_callback_editfile'),
   \   'window': g:notesium_window })
 
 command! -nargs=* NotesiumLines
   \ call notesium#finder({
   \   'input': 'lines ' . join(map(split(<q-args>), 'shellescape(v:val)'), ' '),
-  \   'options': '--prompt=NotesiumLines' . (&columns > 79 ? ' --preview' : ''),
+  \   'options': '--prompt=NotesiumLines' . (&columns > 89 ? ' --preview' : ''),
   \   'callback': function('notesium#finder_callback_editfile'),
   \   'window': g:notesium_window })