I currently use Church Motion Graphics motion background and slide templates for Proclaim. Time and time again, CMG would come out with a motion pack (and related premium items) which features text with an embedded pattern not able to be replicated on Proclaim. Yes, using Photoshop to manually create a text graphic one by one is probably the only workaround, but then the text graphic is no longer editable once it's uploaded on Proclaim.
For example, Church Motion Graphics has a Revival Trails Pack (https://shop.churchmotiongraphics.com/pack/mp-revival-trails). The motion titles seen there have squiggly lines embedded in the text with a customizable color profile. Granted if the pattern image (in this case, the squiggly lines) can be obtained through Photoshop, I wish I could create a customizable pattern overlay (most likely color burn blending mode) and change that pattern to any color, as if it was its own "font color" within the solid font color. That could really improve workability and increase workflow. Attached is the Revival Trails Welcome still title for context. And again, CMG has slide templates from any of their packs that could isolate any pattern overlay on its own. I just hope there will be a future feature that could create a clipping mask for images to be embedded in the text.