Adds an overlay to have a better UI to view images on Pixiv
Add an overlay to a pixiv artworks page when there is more than one picture to see. The overlay let you use arrow and click instead of scrolling to see all the images.
Usable shortcut :
Echap to close the overlay
Left/right arrow to load next or previous image
Click left or right of the image to load next or previous image
Click on the thumbnail of the image you want to see on the left to load it
P to private bookmark