I'd ready this is not possible with Camtasia. Is that true? Is it something that will be added?
We are listening, and we'd like to hear from you. Please make sure to +1 this thread as David suggested if you'd like to see this feature. Bonus points if you tell us why this feature be valuable to you. We're always weighing the requests against our available time, and trying to add the features you'd find most valuable.
Thanks again for your continued feedback.
Thank you and others for your comments on this topic.
We have identified this as a feature to be added in our next major release.
I would like to draw your attention to this post:
And in particular, video #6:
... that shows how this feature will work in the new version of Camtasia. I know this doesn't help those who need this feature right now, however, we want you to know we read these posts and understand our customers need for this feature.
We want to thank you for your patience while we worked to making changing your video brightness and contrast achievable. We are pleased to announce that we have just released our newest, most powerful version of Camtasia yet. This Camtasia release has a new visual effect for Color Adjustment.
Please feel free to post your feedback and feature requests here in our Community forums and remember, all technical support-related inquiries should be directed to our dedicated Technical Support team at https://support.techsmith.com/
Senior Software Engineer