[Galaxy S II Android Development] remuntada78:
I added id in tw_statusbar_expanded_header like this

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout android:gravity="center_vertical" android:orientation="horizontal" [COLOR="Red"]android:id="@id/header" [/COLOR]android:background="#ff000000" android:layout_width="fill_parent" android:layout_height="39.0dip" android:baselineAligned="false"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:systemui="http://schemas.android.com/apk/res/com.android.systemui">
<com.android.systemui.statusbar.policy.Clock android:textAppearance="@style/TextAppearance.StatusBar.Expanded.Clock" android:textColor="#ffffffff" android:id="@id/clock" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="4.0dip" android:layout_marginTop="-3.0dip" android:singleLine="true" systemui:ampmSmall="true" />
<com.android.systemui.statusbar.policy.DateView android:textAppearance="@style/TextAppearance.StatusBar.Expanded.Date" android:textColor="#ffcbcbcb" android:ellipsize="none" android:id="@id/date" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="8.0dip" android:layout_marginRight="4.0dip" android:maxLines="2" />
<com.android.systemui.statusbar.RotationToggle android:id="@id/rotation_lock_button" android:visibility="gone" android:clickable="true" android:layout_width="32.0dip" android:layout_height="32.0dip" android:layout_margin="8.0dip" android:button="@drawable/ic_notify_rotation" android:contentDescription="@string/accessibility_rotation_lock_off" />
<Space android:layout_width="0.0dip" android:layout_height="0.0dip" android:layout_weight="1.0" />
<ImageView android:layout_width="1.0dip" android:layout_height="25.0dip" android:layout_marginTop="7.0dip" android:layout_marginBottom="7.0dip" android:src="@drawable/tw_quick_panel_plnm_setting_dv" />
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@id/recent_apps" android:paddingLeft="3.0dip" android:paddingRight="3.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:src="@drawable/tw_quickpanel_icon_recent" android:layout_toLeftOf="@id/back" android:contentDescription="@string/accessibility_recent" systemui:keyCode="187" systemui:glowBackground="@drawable/ic_sysbar_highlight" />
<ImageView android:layout_width="1.0dip" android:layout_height="25.0dip" android:layout_marginTop="7.0dip" android:layout_marginBottom="7.0dip" android:src="@drawable/tw_quick_panel_plnm_setting_dv" />
<RelativeLayout android:id="@id/settings_button" android:background="@drawable/tw_quick_panel_setting_button_bg" android:focusable="true" android:visibility="visible" android:layout_width="@dimen/status_bar_expanded_setting_width" android:layout_height="39.0dip">
<ImageView android:id="@id/settings_button_icon" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/tw_quickpanel_icon_settings" android:scaleType="center" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:contentDescription="@string/accessibility_settings_button" />
</RelativeLayout>
</LinearLayout>

and changed the method like this

.method setStatusbarExpandedColor()V
.locals 6

iget-object v0, p0, Lcom/android/systemui/statusbar/phone/PhoneStatusBar;->mStatusBarWindow:Lcom/android/systemui/statusbar/phone/StatusBarWindowView;

const v1, 0x7f0d000a

invoke-virtual {v0, v1}, Lcom/android/systemui/statusbar/phone/StatusBarWindowView;->findViewById(I)Landroid/view/View;

move-result-object v0

[COLOR="Red"]check-cast v0, Landroid/widget/LinearLayout;[/COLOR]

iget-object v2, p0, Lcom/android/systemui/statusbar/phone/PhoneStatusBar;->mContext:Landroid/content/Context;

invoke-virtual {v2}, Landroid/content/Context;->getContentResolver()Landroid/content/ContentResolver;

move-result-object v2

const-string v3, "statusbar_expanded_color"

const v4, -0x100

invoke-static {v2, v3, v4}, Landroid/provider/Settings$System;->getInt(Landroid/content/ContentResolver;Ljava/lang/String;I)I

move-result v2

invoke-virtual {v0, v2}, Landroid/view/View;->setBackgroundColor(I)V

return-void
.end method

and i got this

i need to change something in my xml layout?

thanks again

edit:solved it by changing the value of tw_status_bar_quicksetting_button_background in res/value/drawales.xml from black to trasparent:laugh:

thanks again to Goldie, gerryS2 and CNexus