Will Themes be arriving soon to the Desktop App?

I've tried the *new* App several times, and keep going back to the Classic App, which allows me to select a Theme that works best for me. I intensely (yes, INTENSELY) dislike the design of the new App, including the Dark Mode, which lacks any contrast settings to make it readable (and both light and dark mode look like they were designed by tween-agers for the under-six-years-old crowd).

Please add in some Themes or at least the ability to set the background colors of each section and some font color selections. I'll keep using the Classic App in the meantime.