frontend-developer-1

Create Themes
Magento uses the Composer autoloader. If you look at the Luma theme’s composer.
json, you will see the autoload.files node, whose value is registration.php.
As the Magento application starts up, Composer executes each file as specified
in the autoload.files section. registration.php then registers itself as a
theme. The theme is now available.
1.2 DESCRIBE THE DIFFERENT FOLDERS OF A
THEME
etc/: this folder usually has one file: view.xml. view.xml provides configuration
values for the theme in a structured format.
i18n/: this folder contains translations for the theme.
media/: this folder usually has one file: preview.jpg. The preview image
provides a sample of what the theme will look like when activated.
web/: the files and directories here will be eventually downloaded by website
visitors. In one form or another, they will ultimately be accessible from pub/
static. LESS files will first be placed in var/view_preprocessed before being
compiled and found in pub/static.
As a rule of thumb, Magento recommends not to use this directory but rather place
customizations of the theme into the appropriate directory within the module
directory where the functionality originates (for example, checkout customizations
should be placed under the Magento_Checkout/web directory).
css/: location of base Magento stylesheets. These will be exported to the pub/
static/[area]/[package]/[theme]/[locale]/css directory.
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