Create config for adding environment banner

src/Bundle/ChillMainBundle/DependencyInjection/ChillMainExtension.php

@@ -205,6 +205,11 @@ class ChillMainExtension extends Extension implements
                 []
         );
 
+        $container->setParameter(
+            'chill_main.top_banner',
+            $config['top_banner'] ?? []
+        );
+
         $loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../config'));
         $loader->load('services.yaml');
         $loader->load('services/doctrine.yaml');
@@ -250,6 +255,7 @@ class ChillMainExtension extends Extension implements
                     'name' => $config['installation_name'], ],
                 'available_languages' => $config['available_languages'],
                 'add_address' => $config['add_address'],
+                'chill_main_config' => $config,
             ],
             'form_themes' => ['@ChillMain/Form/fields.html.twig'],
         ];

src/Bundle/ChillMainBundle/DependencyInjection/Configuration.php

@@ -168,6 +168,20 @@ class Configuration implements ConfigurationInterface
             ->end()
             ->end()
             ->end()
+            ->arrayNode('top_banner')
+            ->canBeUnset()
+            ->children()
+            ->booleanNode('visible')
+            ->defaultFalse()
+            ->end()
+            ->arrayNode('text')
+            ->useAttributeAsKey('lang')
+            ->scalarPrototype()->end()
+            ->end() // end of text
+            ->scalarNode('color')->defaultNull()->end()
+            ->scalarNode('background_color')->defaultNull()->end()
+            ->end() // end of top_banner children
+            ->end() // end of top_banner
             ->arrayNode('widgets')
             ->canBeEnabled()
             ->canBeUnset()