habitica-android/Habitica/res/drawable/daily_checked.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle">
    <corners android:radius="@dimen/daily_checkbox_corner_radius"/>
    <solid android:color="@color/checkbox_fill_selected" />
    <size android:height="@dimen/checkbox_size" android:width="@dimen/checkbox_size" />
    <padding android:left="0dip" android:top="0dip" android:right="0dip" android:bottom="0dip" />
</shape>