activity_doki_custom.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    <app:dev.doubledot.doki.views.DokiContentView
            android:id="@+id/doki_content"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:dokiPrimaryTextColor="#fff"
            app:dokiSecondaryTextColor="#bdc3c7"
            app:dokiButtonsTextColor="#2bcbba"
            app:dokiActiveIconsColor="#eb3b5a"
            app:dokiInactiveIconsColor="#45aaf2"
            app:dokiExplanationTitle="The Explanation"
            app:dokiSolutionTitle="The Solution"
            app:dokiBackgroundColor="#34495e"
            app:dokiHeaderBackgroundColor="#2c3e50"
            app:dokiDividerColor="#f1c40f"
            app:dokiImgBorderColor="#27ae60"
            app:dokiActiveIconsDrawable="@drawable/ic_alarm"
            app:dokiInactiveIconsDrawable="@drawable/ic_alarm_outline"
    />

    <!--
        Additionally, if you don't want to set custom drawables for active and inactive icons,
        you can set any of the 4 included styles using this attribute:
        app:dokiIconsStyle="..."
        Available styles are: THUMB, FACE, POOP and TRASH
    -->


</LinearLayout>