Okay - I converted the old Motion 4 template to make FCP Title templates for you here:
https://fcpxtemplates.com/sdm_downloads/pulse-for-fcpx/
The published parameters will let you re-colorize the design and you can color the text with one color - or if you want to customize text colors, turn off the Text Color Mix (down to 0%) and use the Text Inspector to set the Face Colors. For two of the templates that have a background, you can also colorize the Background and set their Opacities if you want to overlay the titles on the storyline content.
You will need to install these in:
/Users/<your "home" folder>/Movies/Motion Templates/Titles/<use "Pulse" as a category>/
For <use "Pulse" as a category> - you will need to create that folder inside the Titles folder.
Move the three folders: Pulse - Open, Pulse - Menu and Pulse - Lower Third into the Pulse folder you created.
IF THIS IS THE FIRST TIME you've manually installed third party effects and you DON'T have a Motion Templates folder, you will need to create it. Inside Movies, add a New Folder and Name it: Motion Templates.localized
Note: once you type enter, the ".localized" extension is most likely to disappear!! Do NOT try to add it again!!! [You can check the name by right clicking the folder and selecting Get Info to check the folder's actual name.]
Then, inside Motion Templates, add a New Folder and name it: Titles.localized
New folders (categories) created inside Titles do not need to have the .localized extension!
If you run into trouble, check out:
https://fcpxtemplates.com/installing-plugins-for-fcpx/
(there's also a video if you prefer...)
HTH