Not gotting my Custom icon in my button

[salmantln]

I followed the docs on https://kordamp.org/ikonli/#_authoring to try and get my custom icon into my button. But when I try it, I get and use CAPTCHA("my-icon-captcha", '\uE001'); i get a checkmark icon:

I use the site https://fontello.com/ to create my custom icon.

public enum MyIcon implements Ikon {
    CAPTCHA("my-icon-google_recaptcha-icon", '\uE800');

    public static MyIcon findByDescription(String description) {
        for (MyIcon font : values()) {
            if (font.getDescription().equals(description)) {
                return font;
            }
        }
        throw new IllegalArgumentException("Icon description '" + description + "' is invalid!");
    }

    private String description;
    private int code;

    MyIcon(String description, int code) {
        this.description = description;
        this.code = code;
    }

    @Override
    public String getDescription() {
        return description;
    }

    @Override
    public int getCode() {
        return code;
    }
}

This is what I get when i am trying to use MyIcon:

how can i make sure that i get my own icon?

[aalmiray]

This could be a problem with the font family name

[salmantln]

Any idea what the font family name should be or how i can get it?

[aalmiray]

The font family should be able to be set using the fontello app. Personally I use use the icomoon to create fonts. There should be a setting that lets you specify a custom font family name. If there isn't then you could switch to icomoon or use a font editor (I use FontForge on OSX) to set the value.

[RealThanhpv]

I tried the font file materialdesign-pack of this lib, with the same family name but still hit the same problem.

Any helps is highly appreciated.