…(lyrixx)This PR was merged into the 4.1-dev branch.Discussion----------[Workflow] Add a MetadataStore to fetch some metadata| Q             | A| ------------- | ---| Branch?       | master| Bug fix?      | no| New feature?  | yes| BC breaks?    | yes (little)| Deprecations? | yes| Tests pass?   | yes| Fixed tickets |#23257| License       | MIT| Doc PR        | TODO---This is an attempt tofix#23257. I first started to implement`Ẁorkflow::getMetadata()`, `Transition::getMetadata()` and`Place::getMetadata()`. **BUT**, there are no `Place` class. For now it's just a`string`. So dealing with BC is a nightmare.So I tried to find another way to fix the issue. [Thiscomment](#23257 (comment))summary well the two options. But this PR is (will be) a mix of theses 2options.First it will be possible to configure the workflow/metadata like this:```yamlblog_publishing:    supports:        - AppBundle\Entity\BlogPost    metada:         label: Blog publishing         description: Manages blog publishing    places:        draft:            metadata:                 description: Blog has just been created                 color: grey        review:            metadata:                 description: Blog is waiting for review                 color: blue    transitions:        to_review:            from: draft            to: review            metadata:                label: Submit for review                route: admin.blog.review```I think is very good for the DX. Simple to understand.All metadata will live in a `MetadataStoreInterface`. If metadata are set viathe configuration (workflows.yaml), then we will use the`InMemoryMetadataStore`.Having a MetadataStoreInterface allow user to get dynamic value for a place /transitions. It's really flexible. (But is it a valid use case ?)Then, to retrieve these data, the end user will have to write this code:```phppublic function onReview(Event $event) {    $metadataStore = $event->getWorkflow()->getMetadataStore();    foreach ($event->getTransition()->getTos() as $place) {        $this->flashbag->add('info', $metadataStore->getPlaceMetadata($place)->get('description'));    }}```Note: I might add some shortcut to the Event classor in twig:```jinja{% for transition in workflow_transitions(post) %}    <a href="{{ workflow_metadata_transition(post, route) }}">         {{ workflow_metadata_transition(post, transition) }}   </a>{% endfor %}```---WDYT ?Should I continue this way, or should I introduce a `Place` class (there will beso many deprecation ...)Commits-------bd1f2c8 [Workflow] Add a MetadataStore

…(vudaltsov)This PR was squashed before being merged into the 4.1 branch (closes#27190).Discussion----------[Workflow] Added DefinitionBuilder::setMetadataStore().| Q             | A| ------------- | ---| Branch?       | master| Bug fix?      | no| New feature?  | no| BC breaks?    | no| Deprecations? | no| Tests pass?   | yes| Fixed tickets || License       | MIT| Doc PR        |This PR complements#26092.Commits-------2882f8d [Workflow] Added DefinitionBuilder::setMetadataStore().

This PR was squashed before being merged into the 4.3-dev branch (closes#29538).Discussion----------[Workflow] Add colors to workflow dumpsFixes#28874| Q             | A| ------------- | ---| Branch?       | master| Bug fix?      | no| New feature?  | yes| BC breaks?    | no| Deprecations? | no| Tests pass?   | yes| Fixed tickets |#28874, replaces#28933| License       | MIT| Doc PR        | TODO, requiressymfony/symfony-docs#9476Fetch data with the `MetadataStore` from#26092 in order to add colors to the dumps.Example of configuration:```yaml            transitions:                submit:                    from: start                    to: travis                    metadata:                        title: transition submit title                        dump_style:                            label: 'My custom label'                            arrow_color: '#0088FF'                            label_color: 'Red'```This code was developed as a bundle, examples can be found on its repository:https://github.com/alexislefebvre/SymfonyWorkflowStyleBundleCommits-------60ad109 [Workflow] Add colors to workflow dumps

…(derrabus)This PR was merged into the 6.4 branch.Discussion----------[TwigBridge] Remove obsolete Workflow feature detection| Q             | A| ------------- | ---| Branch?       | 6.4| Bug fix?      | no| New feature?  | no| Deprecations? | no| Tickets       | N/A| License       | MIT| Doc PR        | N/AThe classes and methods that are detected here have been introduced with#24751 and#26092 (both Symfony 4.1)Commits-------7e9d5bb [TwigBridge] Remove obsolete Workflow feature detection