RadiationX

почти всё - официальные источники
https://developer.android.com/guide/topics/ui/look-and-feel/themes
https://medium.com/androiddevelopers/android-styling-themes-vs-styles-ebe05f917578
https://medium.com/androiddevelopers/whats-your-text-s-appearance-f3a1729192d
https://medium.com/androiddevelopers/android-styling-common-theme-attributes-8f7c50c9eaba
https://medium.com/androiddevelopers/android-styling-prefer-theme-attributes-412caa748774
https://medium.com/androiddevelopers/android-styling-themes-overlay-1ffd57745207
https://habr.com/ru/company/redmadrobot/blog/461201/
https://material.io/develop/android/theming/theming-overview
https://material.io/design/introduction

RadiationX

import android.content.Context
import android.content.res.TypedArray
import android.graphics.drawable.Animatable
import android.graphics.drawable.Drawable
import android.util.AttributeSet
import android.util.TypedValue
import com.google.android.material.R
import com.google.android.material.button.MaterialButton
import kotlin.math.roundToInt

RadiationX

// add this to your implementation SearchSupportFragment
// put avoidSpeechRecognitinCrash() in your fragment before onPause()
override fun onPause() {
    avoidSpeechRecognitinCrash()
    super.onPause()
}

// "destroy" may throw java.lang.IllegalArgumentException: Service not registered: android.speech.SpeechRecognizer$Connection@dabd9b8
// do all this mehod's work and wrap "destroy" to try catch
//    private void releaseRecognizer() {