To customize your stickers select the one you want to customize
Go to the right side panel for the gif customization options ;
You can make any customizations as you need.
You can make the following customizations :
Proportions (which permits you to choose whether the emoji is contained in its selection box or covers it) ;
Position and size ;
Border (its color, width and rounding) ;
Opacity.
To customize your emojis select the emoji you want to customize
Go to the right side panel for the emoji customization options ;
You can make any customizations as you need.
You can then customize what you want :
Proportions (which permits you to choose whether the emoji is contained in its selection box or covers it) ;
Position and size ;
Border (its color, width and rounding) ;
Opacity.