Customizing colors per-user outside of a panel by Mohamed Sabil

Installation
Usage

Filament 3 was released a few days ago that's contains many new features in addition to several new main core packages (Actions, Infolist Builder, and Widgets).

Among the new features is the ability to add an unlimited number of panels (AKA admin areas / dashboards). Each of them is its own service provider, allowing you to customizing the Panel as needed, including specifying and assigning colors individually.

We can take advantage of this feature in the Frontend (non panel parts) of the site by allowing, for example, each user to choose their own preferred color. To clarify this, we will build a quick example.

#Installation

To get started, you can install a new Laravel project. You can call this app anything you'd like, but we will call ours custom-frontend-color.

laravel new custom-frontend-color
 
cd ./custom-frontend-color

Since Livewire 3 is still in beta, we need to modify the minimum-stability property in composer.json to 'dev':

"minimum-stability": "dev",

Now we can install Filament with the following steps:

composer require filament/filament:"^3.0-stable" -W
 
php artisan filament:install --scaffold --panels
 
npm install
 
npm run dev

Notice the --scaffold option in the previous command will modify and publish some files including assets and the layout file resources/views/components/layouts/app.blade.php which will use later.

Since we want users to be able to set their own color, we'll need to store that value somewhere. So, let's add it to our users database migration and the User model.

// database/migrations/2014_10_12_000000_create_users_table.php
 
Schema::create('users', function (Blueprint $table) {
    $table->id();
    $table->string('name');
    $table->string('email')->unique();
    $table->timestamp('email_verified_at')->nullable();
    $table->string('password');
    $table->string('color')->default('#6a5acd'); // <-- we added this line
    $table->rememberToken();
    $table->timestamps();
});

#Usage

For this example, we'll create an invokable controller to display user information, e.g. UserController and modify it like the following:

<?php
namespace App\Http\Controllers;
 
use App\Models\User;
use Illuminate\Http\Request;
 
class UserController extends Controller
{
    public function __invoke(Request $request, User $user)
    {
        return view('welcome', compact('user'));
    }
}

Then, prepare our web.php route file.

// routes/web.php
 
Route::get('/{user}', UserController::class);

Also, modify the body content in welcome.blade.php with the following:

<x-layouts.app>
    <div class="p-8 bg-primary-500 text-white font-bold text-xl text-center">
        {{ $user->name }}
    </div>
</x-layouts.app>

We extended the layout file resources/views/components/layouts/app.blade.php which we mentioned in the Installation section. The content of that file is like the following:

<!DOCTYPE html>
<html lang="{{ str_replace('_', '-', app()->getLocale()) }}">
    <head>
        <meta charset="utf-8">
 
        <meta name="application-name" content="{{ config('app.name') }}">
        <meta name="csrf-token" content="{{ csrf_token() }}">
        <meta name="viewport" content="width=device-width, initial-scale=1">
 
        <title>{{ config('app.name') }}</title>
 
        <style>
            [x-cloak] {
                display: none !important;
            }
        </style>
 
        @filamentStyles
        @vite('resources/css/app.css')
    </head>
 
    <body class="antialiased">
        {{ $slot }}
 
        @filamentScripts
        @vite('resources/js/app.js')
    </body>
</html>

Notice the New @filamentScripts and @filamentStyles Blade directives. They inejct all Filament styles and scripts needed.

In the last step, we will register a view composer by adding the following to the boot() method in the AppServiceProvider (or another service provider of your choice).

use Filament\Support\Facades\FilamentColor;
 
public function boot(): void
{
    view()->composer('components.layouts.app', function () {
        $user = request()->route()?->parameter('user');
 
        FilamentColor::register([
            'primary' => $user?->color ?? '#000000',
        ]);
    });
}

Now try visiting any user's link and see how their background color is applied:

http://custom-frontend-color.test/1
http://custom-frontend-color.test/2

You can check out the documentation to learn more about customizing colors then use it according to your project.