res/values/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-->

<resources>
    <!-- Launcher theme -->
    <style name="BaseLauncherTheme" parent="@android:style/Theme.DeviceDefault.Light.NoActionBar">
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:colorBackgroundCacheHint">@null</item>
        <item name="android:windowShowWallpaper">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:colorEdgeEffect">#FF757575</item>
        <item name="android:keyboardLayout">@layout/all_apps_search_container</item>
    </style>

    <style name="LauncherTheme" parent="@style/BaseLauncherTheme"></style>

    <!--
    Theme overrides to element on homescreen, i.e., which are drawn on top on wallpaper.
    Various foreground colors are overridden to be white so that they are properly visible on
    various wallpapers
    -->
    <style name="HomeScreenElementTheme" parent="@style/LauncherTheme">
        <item name="android:colorEdgeEffect">@android:color/white</item>
        <item name="android:textColorPrimary">@android:color/white</item>
        <item name="android:textColorSecondary">@android:color/white</item>
    </style>

    <!-- Theme for the widget container. Overridden on API 26. -->
    <style name="WidgetContainerTheme" parent="@android:style/Theme.DeviceDefault.Settings">
        <item name="android:colorEdgeEffect">?android:attr/textColorSecondaryInverse</item>
        <item name="android:textColorPrimary">?android:attr/textColorPrimaryInverse</item>
        <item name="android:textColorSecondary">?android:attr/textColorSecondaryInverse</item>
    </style>

    <style name="FastScrollerPopup" >
        <item name="android:background">@drawable/container_fastscroll_popup_bg</item>
        <item name="android:layout_width">wrap_content</item>
        <item name="android:minWidth">@dimen/container_fastscroll_popup_size</item>
        <item name="android:layout_height">@dimen/container_fastscroll_popup_size</item>
        <item name="android:textSize">@dimen/container_fastscroll_popup_text_size</item>
        <item name="android:gravity">center</item>
        <item name="android:alpha">0</item>
        <item name="android:elevation">3dp</item>
        <item name="android:saveEnabled">false</item>
        <item name="android:textColor">@android:color/white</item>
        <item name="android:includeFontPadding">false</item>
    </style>

    <!-- Style for nav bar background in all-apps screen -->
    <style name="AllAppsNavBarProtection">
        <item name="android:alpha">?android:attr/spotShadowAlpha</item>
        <item name="android:background">@color/default_shadow_color_no_alpha</item>
    </style>

    <!-- Base theme for BubbleTextView and sub classes -->
    <style name="BaseIcon">
        <item name="android:layout_width">match_parent</item>
        <item name="android:layout_height">match_parent</item>
        <item name="android:layout_gravity">center</item>
        <item name="android:focusable">true</item>
        <item name="android:gravity">center_horizontal</item>
        <item name="android:singleLine">true</item>
        <item name="android:ellipsize">marquee</item>
        <item name="android:textColor">?android:attr/textColorSecondary</item>
        <item name="android:fontFamily">sans-serif-condensed</item>

        <!-- No shadows in the base theme -->
        <item name="android:shadowRadius">0</item>
        <item name="customShadows">false</item>
    </style>

    <!-- Icon displayed on the worksapce -->
    <style name="BaseIcon.Workspace">
        <item name="customShadows">true</item>
        <item name="android:shadowRadius">2.0</item>
        <item name="android:shadowColor">#B0000000</item>
    </style>

    <!-- Theme for the popup container -->
    <style name="PopupContainer" parent="@style/LauncherTheme">
        <!-- TODO: move hardcoded colors from colors.xml to this theme and use for popup items -->
    </style>
    <style name="IconOnlySystemShortcut">
        <!-- The icons use this color, then are tinted -->
        <item name="android:textColorPrimary">@android:color/white</item>
        <item name="android:tint">?android:attr/textColorHint</item>
    </style>
    <style name="IconWithTextSystemShortcut">
        <!-- The icons use this color, then are tinted -->
        <item name="android:textColorPrimary">@android:color/white</item>
        <item name="android:backgroundTint">?android:attr/textColorTertiary</item>
    </style>

    <!-- Drop targets -->
    <style name="DropTargetButtonBase">
        <item name="android:drawablePadding">7.5dp</item>
        <item name="android:paddingLeft">16dp</item>
        <item name="android:paddingRight">16dp</item>
        <item name="android:textColor">?android:attr/textColorPrimary</item>
        <item name="android:textSize">@dimen/drop_target_text_size</item>
        <item name="android:singleLine">true</item>
        <item name="android:ellipsize">end</item>
        <item name="android:shadowColor">@color/default_shadow_color_no_alpha</item>
        <item name="android:shadowDx">0.0</item>
        <item name="android:shadowDy">1.0</item>
        <item name="android:shadowRadius">4.0</item>
    </style>

    <style name="DropTargetButton" parent="DropTargetButtonBase" />
</resources>