This solution comes courtesy of sabre123 from the Adobe Captivate Community forums so full credit goes to him or her.

Here is the entry you will want to search for: cp.autoplayImage.style.opacity=0.7

You might be asking yourself why your learners have to click on a playback button anyway? Due to browser updates, modern web browsers have discontinued auto-playing media in web pages. Similarly, HTML5 and responsive courses created in Captivate will not auto-play. Autoplaying is not honoured even after enabling the option Auto Play in Preferences > Project > Start and End.

https://helpx.adobe.com/captivate/kb/captivate-responsive-courses-not-autoplay-browsers.html

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Paul Wilson
I’ve been an eLearning designer and developer since 2005, specializing in the creation of interactive and engaging learning experiences. In 2015, I launched my own eLearning design business and began producing Adobe Captivate video tutorials on my YouTube channel, CaptivateTeacher, to support clients and fellow developers. This content not only helped me grow my business globally—it also introduced me to a wider community of aspiring Captivate users who now turn to me for training and mentorship. Today, I provide both online and onsite Adobe Captivate training, empowering others to build effective eLearning with confidence. I’m proud to be part of the Adobe eLearning Community, sharing knowledge, collaborating with other developers, and contributing to the growth of this platform.
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I’ve been an eLearning designer and developer since 2005, specializing in the creation of interactive and engaging learning experiences. In 2015, I launched my own eLearning design business and began producing Adobe Captivate video tutorials on my YouTube channel, CaptivateTeacher, to support clients and fellow developers. This content not only helped me grow my business globally—it also introduced me to a wider community of aspiring Captivate users who now turn to me for training and mentorship. Today, I provide both online and onsite Adobe Captivate training, empowering others to build effective eLearning with confidence. I’m proud to be part of the Adobe eLearning Community, sharing knowledge, collaborating with other developers, and contributing to the growth of this platform.
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gpollacchi
2022-04-01 15:01:06

Is there a file, setting, or registry where you can set cp.autoplayImage.style.opacity=0.7 to =1 to default and not have to change it every time that a course gets created?
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Pooja Jaisingh
2020-05-06 06:44:01

Thanks to sabre123 and you for sharing this tip! 🙂
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