change attach feb icon color day_night

import android.view.MenuItem

import androidx.appcompat.app.AlertDialog

import androidx.core.app.ActivityCompat

import androidx.core.content.ContextCompat

import androidx.core.view.isVisible

import androidx.lifecycle.ViewModelProvider

import androidx.lifecycle.ViewModelProviders

        theme

                .doOnNext { loading.setTint(it.theme) }

                .doOnNext { attach.setTint(it.textPrimary) }

                .doOnNext { attach.setTint(ContextCompat.getColor(this, R.color.colorPrimaryDark)) }

                .doOnNext { messageAdapter.theme = it }

                .autoDisposable(scope())

                .subscribe()