<code-preview>

Palette (frame background)

Filename

Language

Code font

Font size

Padding

Radius

Window style

Shadow

Aspect

Width — auto

Or drag the handles on the left/right edge of the preview.

Window background

Window border

* uses the font only if it's installed on your system.

PNG scale

⌘⇧S · ⌘⇧V

The preview is editable too — type directly in it.