It is a free admin template for backend of yii framework 2 based on gentelella theme.
This extension consists assets bundles, widgets, some page views and a layout example.
You can see all features and usage examples on demo site.
The preferred way to install this extension is through composer.
Either run
php composer.phar require --prefer-dist yiister/yii2-gentelella "~1.0"
or add
"yiister/yii2-gentelella": "~1.0"
to the require section of your composer.json file.
All you need is register yiister\gentelella\assets\Asset in your layout. This extension consists a layout example. You can find it in yiister\gentelella\views\layouts\main.php.