How can I implement a plugin to invert the colors of my logo and menu button in Webflow based on the background color of my slider, in real time and without manual intervention?

To dynamically invert the colors of your logo and menu button in Webflow based on the background color of your slider (and without manual triggers), you'll need to use custom JavaScript to detect background changes and apply corresponding style changes.

1. Define Inversion Criteria

• Identify the section(s) or slides where background color affects contrast.
• Determine whether you'll invert based on light vs dark (e.g., white vs black background).

2. Assign Unique IDs or Classes

• Give your logo and menu button identifiable classes (e.g., .logo, .menu-button).
• Add a data-bg attribute to each slider slide, like data-bg="light" or data-bg="dark", to manually define color intent without needing color detection.

3. Add Real-Time Detection via JavaScript

• Go to Page Settings > Before tag and paste the following JavaScript snippet:

<script>  const invertElements = () => {    const slides = document.querySelectorAll('.w-slide');    const logo = document.querySelector('.logo');    const menu = document.querySelector('.menu-button');        const observer = new MutationObserver(() => {      slides.forEach(slide => {        if (slide.classList.contains('w--current')) {          const bg = slide.getAttribute('data-bg');          if (bg === 'dark') {            logo.classList.add('invert');            menu.classList.add('invert');          } else {            logo.classList.remove('invert');            menu.classList.remove('invert');          }        }      });    });    // Observe for class changes that indicate slide changes    slides.forEach(slide => {      observer.observe(slide, { attributes: true, attributeFilter: ['class'] });    });  };  document.addEventListener('DOMContentLoaded', invertElements);</script>

4. Create the .invert Class in Webflow

• In Webflow Designer, create a combo class .invert for your logo and menu.
• Style it to invert or change the color appropriately:
• Example for inversion: Set filter: invert(1) if it's an image.
• For SVG or icons: Set color: white or black as needed.

5. Test Across All Slides

• Ensure each slide has a data-bg value (light or dark).
• Preview the site and confirm the logo and menu invert automatically as slides change.

Summary

To invert your logo and menu color dynamically in Webflow, use data attributes on each slide, a MutationObserver in JavaScript to track visible slides, and a custom .invert class to style elements based on background intent. This ensures a real-time, automatic, and maintainable color toggle without manual intervention.