The macOS theme, a top-and-bottom Notational Velocity-style layout, with some rules in userchrome.css to hide the styles toolbar, and the sidebar hidden. I use the command palette for everything else.
/* userchrome.css */
/* hide the editing toolbar */
.editor-toolbar {
display: none !important;
}
/* …but don't hide spellcheck, alarm, editor mode, and properties buttons */
span.updated-time-label + .editor-toolbar {
display: flex !important;
}
/* tweak vertical alignment of the note title */
.rli-editor > div > div > div > div:first-child input.title-input {
padding-top: inherit !important;
}