Hi @himan72 ,

I have implement a feature to set and get metadata for state machine graphs, states and transitions.
You can find the code on the metadata branch. To install it on your project you must require the dev-metadata version in your composer.json. I haven't released it yet because I want to get some feedback from you.

Here is the documentation on how to use it:
https://github.com/sebdesign/laravel-state-machine/tree/metadata#metadata

In your case the config would be like this: (note that you need to specify the state name in a 'name' key)

'graph' => [
        //...
        'states' => [
            [
            	'name' => 'new', 
            	'metadata' => [
            		'initial' => true,
            		'display_name' => 'New', 
            		'css_class' => 'primary',
            	]
            ],
            [
            	'name' => 'draft', 
            	'metadata' => [
            		'initial' => false,
            		'display_name' => 'Draft', 
            		'css_class' => 'info',
            	]
            ],
            
        ],
        'transitions' => [
            'accept_for_review' => [
                'from' => ['new'],
                'to' => 'accepted',
                'metadata' =>[
                    'css' => [
                        'class' => 'primary',
                        'color' => '#e1e1e1'
                    ],
                    'display_name' => 'accept_for_review',
                ],
            ],
        ]
        //...
    ]

And you would use it like this (you can get the metadata from the state machine of the $article, not from the $article itself, but you can create a helper method in your model if you want):

<span class="badge {{ $articleStateMachine->metadata('state', 'css_class') }}">
    {{ $articleStateMachine->metadata('state', 'display_name') }}
</span>

<button class="btn btn-{{ $articleStateMachine->metadata()->transition('accept_for_review', 'css.class') }}" style="color: {{ $articleStateMachine->metadata()->transition('accept_for_review', 'css.color') }};">
    {{ $articleStateMachine->metadata()->transition('accept_for_review', 'display_name') }}
</button>

Let me know your thoughts!

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