Years ago I volunteered at a Goodwill center to tutor someone who was interested in writing fiction. In his mid-twenties, this young man had thought a lot about the novel he wanted to write without thinking much about the writing.
"It's a horror story," he said.
"And it will have black pages with white ink."
And that was it.
Packaging matters but that comes later. Without the writing, there's nothing to package.
I think of him now and then when I see a website or blog featuring a black screen and a white font. Or one loaded with so much . . . stuff . . . it's hard to find the writer's words.
If you want to write your book (and here I mean complete your book) , forget the packaging and the widgets and focus on the writing. You can fiddle with all that other stuff after the manuscript is done.