HUDs, GUIs...
To see how to use HUDs and GUIs API (Font Images) you can check my examples.

GUIs

GitHub - LoneDev6/API-ItemsAdder-Example-GUI: Example usage of ItemsAdder API to crete custom textured inventories in Spigot
GitHub

Huds

GitHub - LoneDev6/RPGhuds: Customized HUDs for ItemsAdder
GitHub
GitHub - LoneDev6/API-ItemsAdder-Example-ServerMonitor: Example usage of ItemsAdder API to create custom HUDs in Spigot
GitHub

Access mana bar value example

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PlayerHudsHolderWrapper huds = new PlayerHudsHolderWrapper(player);
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PlayerQuantityHudWrapper manaHud =
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new PlayerQuantityHudWrapper(huds, "magiccraft:mana_bar");
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if(manaHud.exists())
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manaHud.setFloatValue(2.0f);
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else
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System.out.println("Error: mana not found, maybe it's disabled.");
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FAQ

Get Emoji or GUI character

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new FontImageWrapper("twitteremojis:confirm").getString()
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