To see a full screen version a picture:
- Click on its associated thumbnail

To go to the next picture you can :
- Click the right arrow on your keyboard
- Click the opened picture with the left button of your mouse
- Click the Next at the lower right corner of the opened picture

To go to the previous picture you can :
- Click the left arrow on your keyboard
- Click the Previous at the lower right corner of the opened picture

To close the opened picture and return to the thumbnails page you can :
- Click any area outside the opened picture
- Click the Close at the lower right corner of the opened picture