[Android Themes] RafaelAlmeidatk:
I am starting learning to modify my SystemUI.apk, I already changed the "tw_status_bar_close_on" image. Unfurnately, this was the unique thing (with some others) that I could change. I tried centralize the clock, but when I change the SystemUI.apk and reboot device, it is not in the status bar anymore. I unlock the lock screen and it appears, but in right side, like I didn't change nothing. Here my tw_status_bar:

<?xml version="1.0" encoding="utf-8"?>
<com.android.systemui.statusbar.phone.PhoneStatusBarView android:orientation="vertical" android:id="@id/status_bar" android:background="@drawable/status_bar_background" android:focusable="true" android:fitsSystemWindows="true" android:descendantFocusability="afterDescendants">
<ImageView android:id="@id/notification_lights_out" android:paddingLeft="6.0dip" android:paddingBottom="2.0dip" android:visibility="gone" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="fill_parent" android:src="@drawable/ic_sysbar_lights_out_dot_small" android:scaleType="center" />
<LinearLayout android:orientation="horizontal" android:id="@id/icons" android:paddingLeft="6.0dip" android:paddingRight="6.0dip" android:layout_width="fill_parent" android:layout_height="fill_parent">
<LinearLayout android:orientation="horizontal" android:id="@id/left_icons" android:layout_width="0.0dip" android:layout_height="fill_parent" android:layout_weight="1.0">
<TextView android:textSize="15.0dip" android:gravity="center_vertical" android:id="@id/carrierLabel" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
<ImageView android:id="@id/doNotDisturbIcon" android:visibility="gone" android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/tw_dnd" android:alpha="0.7" android:scaleX="0.85" android:scaleY="0.85" />
<com.android.systemui.statusbar.StatusBarIconView android:id="@id/moreIcon" android:visibility="gone" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="fill_parent" android:src="@drawable/stat_notify_more" />
<com.android.systemui.statusbar.phone.IconMerger android:gravity="center_vertical" android:orientation="horizontal" android:id="@id/notificationIcons" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_alignParentLeft="true" />
</LinearLayout>
<LinearLayout android:gravity="center" android:orientation="horizontal" android:id="@id/clock" android:layout_width="wrap_content" android:layout_height="fill_parent">
<com.android.systemui.statusbar.policy.Clock android:textSize="@dimen/status_bar_clock_text_size" android:textColor="#ff0093e0" android:gravity="center" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
</LinearLayout>
<LinearLayout android:gravity="right|center" android:orientation="horizontal" android:id="@id/right_icons" android:layout_width="0.0dip" android:layout_height="fill_parent" android:layout_weight="1.0" android:layout_alignParentRight="true">
<LinearLayout android:gravity="right|center" android:orientation="horizontal" android:id="@id/statusIcons" android:layout_width="wrap_content" android:layout_height="fill_parent" />
<LinearLayout android:gravity="right|center" android:orientation="horizontal" android:id="@id/signal_battery_cluster" android:paddingLeft="0.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent">
<include android:id="@id/signal_cluster" android:layout_width="wrap_content" android:layout_height="wrap_content" layout="@layout/tw_signal_cluster_view" />
<TextView android:textSize="9.0dip" android:textColor="#ff99ff00" android:layout_gravity="center" android:id="@id/battery_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/status_bar_network_name_separator" />
<ImageView android:gravity="center" android:id="@id/battery" android:layout_width="wrap_content" android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
<LinearLayout android:orientation="horizontal" android:id="@id/ticker" android:paddingLeft="6.0dip" android:animationCache="false" android:layout_width="fill_parent" android:layout_height="fill_parent">
<ImageSwitcher android:id="@id/tickerIcon" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="@dimen/status_bar_icon_size" android:layout_marginRight="4.0dip">
<com.android.systemui.statusbar.AnimatedImageView android:layout_width="@dimen/status_bar_icon_size" android:layout_height="@dimen/status_bar_icon_size" android:scaleType="centerInside" />
<com.android.systemui.statusbar.AnimatedImageView android:layout_width="@dimen/status_bar_icon_size" android:layout_height="@dimen/status_bar_icon_size" android:scaleType="centerInside" />
</ImageSwitcher>
<com.android.systemui.statusbar.phone.TickerView android:id="@id/tickerText" android:paddingTop="2.0dip" android:paddingRight="10.0dip" android:layout_width="0.0dip" android:layout_height="wrap_content" android:layout_weight="1.0">
<TextView android:textAppearance="@style/TextAppearance.StatusBar.PhoneTicker" android:id="@id/ticker_text_view_old" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" />
<TextView android:textAppearance="@style/TextAppearance.StatusBar.PhoneTicker" android:id="@id/ticker_text_view_new" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" />
</com.android.systemui.statusbar.phone.TickerView>
</LinearLayout>
</com.android.systemui.statusbar.phone.PhoneStatusBarView>

I also tried change the tw_status_bar_expanded background color, but it also didn't worked. I wanna change this part: i.imgur.com/bbjYIPt.png. I changed the android:background to #ffff0000 (the LinearLayout) just to test but it stills black. It also happed with the settings button in same file, I could not change the background color.

The same problems occurs when I try to change the statusbar text colors. I can't change the clock color and other elements colors, when the system reboots it stills gray (I change the android:textColor).

What I tried and worked: change the statusbar transparency, remove status bar expanded background, remove status bar notifications itens background.

What am I doing wrong? Sorry my english.