Customising icons in Iconify for Tailwind CSS 
This documentation covers customise option for addIconSelectors plugin.
Customise callback 
Option customise allows you to change content of icons.
What is it for?
- You can change stroke-width in icons that use stroke.
- You can change colors in icons that use hardcoded palette, such as emojis.
- You can change animation duration in animated icons.
- You can change opacity of semi-transparent elements.
- You can add extra shapes to icons.
...and so on. You have full control over SVG content.
Usage 
customise option is a function, which has 3 parameters:
- content, string. Icon content.
- name, string. Icon name.
- prefix, string. Icon set prefix.
Function should return modified content. If there is nothing to modify, it should return original content value.
Example 
Example of using customise option to change stroke-width in Tabler icons:
js
addIconSelectors({
    prefixes: ['tabler'],
    customise: (content, name, prefix) => {
        switch (prefix) {
            case 'tabler':
                return content.replaceAll('stroke-width="2"', 'stroke-width="1.5"');
        }
        return content;
    }
 })Conflicts 
If you also have a customise option used in entry in prefixes option, that callback has a priority and main customise will not be used for that icon set.