Hi everybody !
For all those who are using the grid interface with steam, maybe, just like me, you'd like to change the pictures shown.
In order to do that, just right click on your game and choose "Set Custom Image" with an image of your preference,( 460x215 only however).
And here are some pictures I "made",( just a simple editing thanks to sacred wiki pictures):
And others I found on the web, related to a certain Jinx but the page looks deleted so at least it won't go lost^^
And don't hesitate to share your own personal picture if you'd like, so that we could all have a wider choice^^
Good day to you all !