diff --git a/config.go b/config.go
index 7e748ae..423c881 100644
--- a/config.go
+++ b/config.go
@@ -6,6 +6,7 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"strconv"
 
 	"github.com/nsf/termbox-go"
 	"github.com/peco/peco/filter"
@@ -133,11 +134,21 @@ func stringsToStyle(style *Style, raw []string) error {
 		fg, ok := stringToFg[s]
 		if ok {
 			style.fg = fg
+		} else {
+			if fg, err := strconv.ParseUint(s, 10, 8); err == nil {
+				style.fg = termbox.Attribute(fg+1)
+			}
 		}
 
 		bg, ok := stringToBg[s]
 		if ok {
 			style.bg = bg
+		} else {
+			if strings.HasPrefix(s, "on_") {
+				if bg, err := strconv.ParseUint(s[3:], 10, 8); err == nil {
+					style.bg = termbox.Attribute(bg+1)
+				}
+			}
 		}
 	}
 
diff --git a/interface.go b/interface.go
index 8bb2a53..3ae9515 100644
--- a/interface.go
+++ b/interface.go
@@ -151,10 +151,10 @@ type Selection struct {
 // Screen hides termbox from the consuming code so that
 // it can be swapped out for testing
 type Screen interface {
-	Init() error
+	Init(*Config) error
 	Close() error
 	Flush() error
-	PollEvent(context.Context) chan termbox.Event
+	PollEvent(context.Context, *Config) chan termbox.Event
 	Print(PrintArgs) int
 	Resume()
 	SetCell(int, int, rune, termbox.Attribute, termbox.Attribute)
diff --git a/peco.go b/peco.go
index e093549..b168424 100644
--- a/peco.go
+++ b/peco.go
@@ -364,8 +364,8 @@ func (p *Peco) Run(ctx context.Context) (err error) {
 		// screen.Init must be called within Run() because we
 		// want to make sure to call screen.Close() after getting
 		// out of Run()
-		p.screen.Init()
-		go NewInput(p, p.Keymap(), p.screen.PollEvent(ctx)).Loop(ctx, cancel)
+		p.screen.Init(&p.config)
+		go NewInput(p, p.Keymap(), p.screen.PollEvent(ctx, &p.config)).Loop(ctx, cancel)
 		go NewView(p).Loop(ctx, cancel)
 		go NewFilter(p).Loop(ctx, cancel)
 	}()
diff --git a/screen.go b/screen.go
index f8d0325..c5d7b79 100644
--- a/screen.go
+++ b/screen.go
@@ -10,12 +10,12 @@ import (
 	"github.com/pkg/errors"
 )
 
-func (t *Termbox) Init() error {
+func (t *Termbox) Init(cfg *Config) error {
 	if err := termbox.Init(); err != nil {
 		return errors.Wrap(err, "failed to initialized termbox")
 	}
 
-	return t.PostInit()
+	return t.PostInit(cfg)
 }
 
 func NewTermbox() *Termbox {
@@ -55,7 +55,7 @@ func (t *Termbox) Flush() error {
 // PollEvent returns a channel that you can listen to for
 // termbox's events. The actual polling is done in a
 // separate gouroutine
-func (t *Termbox) PollEvent(ctx context.Context) chan termbox.Event {
+func (t *Termbox) PollEvent(ctx context.Context, cfg *Config) chan termbox.Event {
 	// XXX termbox.PollEvent() can get stuck on unexpected signal
 	// handling cases. We still would like to wait until the user
 	// (termbox) has some event for us to process, but we don't
@@ -97,7 +97,7 @@ func (t *Termbox) PollEvent(ctx context.Context) chan termbox.Event {
 			case <-ctx.Done():
 				return
 			case replyCh := <-t.resumeCh:
-				t.Init()
+				t.Init(cfg)
 				close(replyCh)
 			}
 		}
diff --git a/screen_posix.go b/screen_posix.go
index 7e41028..d68f564 100644
--- a/screen_posix.go
+++ b/screen_posix.go
@@ -2,6 +2,14 @@
 
 package peco
 
-func (t *Termbox) PostInit() error {
+import "github.com/nsf/termbox-go"
+
+func (t *Termbox) PostInit(cfg *Config) error {
+	// This has no effect on Windows,
+	// because termbox.SetOutputMode always sets termbox.OutputNormal on Windows.
+	if cfg.Use256Color {
+		termbox.SetOutputMode(termbox.Output256)
+	}
+
 	return nil
 }
diff --git a/screen_windows.go b/screen_windows.go
index 4cba33b..b223167 100644
--- a/screen_windows.go
+++ b/screen_windows.go
@@ -2,7 +2,7 @@ package peco
 
 import "github.com/nsf/termbox-go"
 
-func (t *Termbox) PostInit() error {
+func (t *Termbox) PostInit(cfg *Config) error {
 	// Windows handle Esc/Alt self
 	termbox.SetInputMode(termbox.InputEsc | termbox.InputAlt)