Android Dark Theme does not affect SVG images

Question

My current Android application is employing the following style in an attempt to enable Dark Theme

<resources>
    <style name="AppTheme" parent="@style/Theme.MaterialComponents.DayNight.NoActionBar">
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorError">@color/design_default_color_error</item>
        <item name="android:textColor">?attr/colorOnBackground</item>
    </style>

    <style name="splashDialog" parent="Theme.AppCompat.Dialog">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowActionBar">false</item>
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
        <item name="android:windowBackground">@null</item>
    </style>
</resources>

Everything in the UI works fine apart from this SVG image which seems to be the same in both light and dark themes

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="24dp"
    android:height="24dp"
    android:tint="?attr/colorControlNormal"
    android:viewportWidth="24.0"
    android:viewportHeight="24.0">
    <path
        android:fillColor="@android:color/white"
        android:pathData="M12,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.9,2 2,2zM18,16v-5c0,-3.07 -1.63,-5.64 -4.5,-6.32L13.5,4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.64,5.36 6,7.92 6,11v5l-2,2v1h16v-1l-2,-2zM16,17L8,17v-6c0,-2.48 1.51,-4.5 4,-4.5s4,2.02 4,4.5v6z" />
</vector>

How can I achieve the desired result of a "lighter" image when in Dark mode?

Answer 1

In my project I used negative filter for drawable, like this:

private val negative = floatArrayOf(
    -1.0f,     .0f,     .0f,    .0f, 255.0f, // red
    .0f,     -1.0f,     .0f,    .0f, 255.0f, // green
    .0f,       .0f,   -1.0f,    .0f, 255.0f, // blue
    .0f,       .0f,     .0f,   1.0f,   .0f  // alpha
)

fun Drawable.toNegative() {
    this.colorFilter = ColorMatrixColorFilter(negative)
}