[Download app example page] Images on auto

[MewenLeHo]

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

On https://boosted.netlify.app/docs/5.3/examples/download-app/

When using 'Light mode', you can see light images:

When using 'Dark mode', you can see dark images:

When using 'Auto mode', you can see both:

I am using Version 117.0.5938.63 (Build officiel) (64 bits)
But I have the same visual issue with Firefox Version 102.14.0esr (64 bits):

Reduced test cases

Go to https://boosted.netlify.app/docs/5.3/examples/download-app/ use theme switcher.

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome, Firefox

What version of Boosted are you using?

v5.3.1 (current main branch)