That version works a treat! I can change the text color now.
SIDEBAR
To my HDR Project, I added two title animations that I created in After Effects. One was rendered right in AE, the other was sent from After Effects to Media Encoder. Both exports were Apple ProRes 4444 with Alpha. They work perfectly in the Final Cut Pro HDR Project.
Here's the interesting part. Adobe Media Encoder offers a preset named Apple ProRes 4444 with Alpha HLG. Hmm. HLG. I tried it. It suffers the same luma problems as the FCP built-in Titles, making it unusable.
Thank you. And thanks to Luis and Tom. I'm grateful that you took valuable time to help someone you don't even know.
