I'm an extensive homebrewer here on DDB, and with all the wonderful options available for content customization, I figured I'd just toss up a quick reference post that showcases how the drop-down text formatting actually looks when published, since the in-text examples while creating don't always match the final format.

I'm posting this as much to bookmark for my own at-a-glance use as I am for anyone else; but I do hope I'm not the only homebrew neat-freak that gets use out of this!

In drop-down order (excluding "Pre" text format):

Paragraph. Bold. Italic. Bold Italic. Underlined.

Header 2. Bold. Italic. Bold Italic. Underlined.

(Standard, "paragraph" text for interface reference)

Header 3. Bold. Italic. Bold Italic. Underlined.

(Standard, "paragraph" text for interface reference) 

Header 4. Bold. Italic. Bold Italic. Underlined.

(Standard, "paragraph" text for interface reference)  

Header 5. Bold. Italic. Bold Italic. Underlined.

(Standard, "paragraph" text for interface reference)  

Header 6. Bold. Italic. Bold Italic. Underlined.

(Standard, "paragraph" text for interface reference)

Just a heads up, but they look a little differently when placed into a quotebox or a spoiler.