The following effects are available in ExtraFireworks by default. You can configure more image-based ones and modify which items are used for crafting firework stars.
Display the text of a name tag on firework explosion. (Supports PlaceholderAPI placeholders)
Permission: extrafireworks.craft.text
 
 
Display the text in a box. (Supports PlaceholderAPI placeholders)
Permission: extrafireworks.craft.text
 
 
Display the content of a map via particles. Especially cool if players build pixel art on maps or if some form of map image plugin is used!
Permission: extrafireworks.craft.map
 
 
 
Display a player's face from a skull (or if using the box modifier the 4 sides)
Permission: extrafireworks.craft.head
 
 
 
A colorable fountain effect.
Permission: extrafireworks.craft.fountain
 
 
 
 
Three different level of snow fall particles.
Permission: extrafireworks.craft.snow
 
 
 
 
The explosion is mainly useful for a louder “boom” sound, the effects are rather minimal.
Permission: extrafireworks.craft.explosion
 
 
 
You can also setup custom effects that can be crafted with other items which then use images to define how to display the particles. See the config for more info.
Permission: extrafireworks.craft.<custom id>