Link1

This is my previous list.blade.php
<?php
    use Carbon\Carbon;
    $today_date = Carbon::now();


    $expiry_date = []; // array();

    foreach ($entries as $k => $entry) {
        $expiry_date[] = Carbon::parse($entry->expiry_date);
    }


$expiry_date = []; // array();

?>

@extends('backpack::layout')

@section('header')
    <section class="content-header">
      <h1>
        <span class="text-capitalize">{{ $crud->entity_name_plural }}</span>
        <small>{{ trans('backpack::crud.all') }} <span>{{ $crud->entity_name_plural }}</span> {{ trans('backpack::crud.in_the_database') }}.</small>
      </h1>
      <ol class="breadcrumb">
        <li><a href="{{ url(config('backpack.base.route_prefix'), 'dashboard') }}">{{ trans('backpack::crud.admin') }}</a></li>
        <li><a href="{{ url($crud->route) }}" class="text-capitalize">{{ $crud->entity_name_plural }}</a></li>
        <li class="active">{{ trans('backpack::crud.list') }}</li>
      </ol>
    </section>
@endsection

@section('content')
<!-- Default box -->
  <div class="row">

    <!-- THE ACTUAL CONTENT -->
    <div class="col-md-12">
      <div class="box">
        <div class="box-header {{ $crud->hasAccess('create')?'with-border':'' }}">

          @include('crud::inc.button_stack', ['stack' => 'top'])

          <div id="datatable_button_stack" class="pull-right text-right"></div>
        </div>

        <div class="box-body table-responsive">

        {{-- Backpack List Filters --}}
        @if ($crud->filtersEnabled())
          @include('crud::inc.filters_navbar')
        @endif

        <table id="crudTable" class="table table-bordered table-striped display">
            <thead>
              <tr>
                @if ($crud->details_row)
                  <th data-orderable="false"></th> <!-- expand/minimize button column -->
                @endif

                {{-- Table columns --}}
                @foreach ($crud->columns as $column)
                  <th>{{ $column['label'] }}</th>
                @endforeach

                @if ( $crud->buttons->where('stack', 'line')->count() )
                  <th>{{ trans('backpack::crud.actions') }}</th>
                @endif
              </tr>
            </thead>
            <tbody>

              @if (!$crud->ajaxTable())
                @foreach ($entries as $k => $entry)

                <?php


                $data_difference = $today_date->diffInDays(Carbon::parse($entry->expiry_date), false);
                if($data_difference <= 7 && $data_difference >= 0) {
                  $color="#FF9900";
                } elseif($data_difference < 0) {
                  $color="#EA2C12";
                } elseif($data_difference > 7) {
                  $color="#539E05";
                }
                ?>

                <tr data-entry-id="{{ $entry->getKey() }}" style="color: {{$color}}">


                  @if ($crud->details_row)
                    @include('crud::columns.details_row_button')
                  @endif

                  {{-- load the view from the application if it exists, otherwise load the one in the package --}}
                  @foreach ($crud->columns as $column)
                    @if (!isset($column['type']))
                      @include('crud::columns.text')
                    @else
                      @if(view()->exists('vendor.backpack.crud.columns.'.$column['type']))
                        @include('vendor.backpack.crud.columns.'.$column['type'])
                      @else
                        @if(view()->exists('crud::columns.'.$column['type']))
                          @include('crud::columns.'.$column['type'])
                        @else
                          @include('crud::columns.text')
                        @endif
                      @endif
                    @endif

                  @endforeach

                  @if ($crud->buttons->where('stack', 'line')->count())
                    <td>
                      @include('crud::inc.button_stack', ['stack' => 'line'])
                    </td>
                  @endif

                </tr>
                @endforeach
              @endif
 And this is link1 and it is working and coloring my crud list items