color change html buttons are not visible in AR mode

[Arumugamsix]

Description

We have done a car configurator it includes a color change module and it's working fine in normal mode. but in AR mode the color buttons are not visible. but our requirement is change the color in AR mode also

working site
https://hnsonline.com/test/

[elalish]

Can you show a screen recording so I can tell exactly what you mean? I notice a few things:

1. Check your console logs; it looks like you're importing two different versions of the model-viewer library. Make sure you're only using the latest.
2. HTML child element will only show up in WebXR AR mode (Scene Viewer and Quick Look don't support them). However, I see you're using ios-src. With our latest version you can remove this and we'll auto-generate the USDZ for you, which should load the currently-selected color into Quick Look (it's faster too).
3. Look closely at our docs; for instance I notice you have ar-scale: "30%", which is not a supported value.