Styles and borders

Fonts, sizes, colours, alignment, padding and per-side borders, and named styles that elements share with styleName.

Inline styles merge over a named style (styleName), which merges over the report font. Borders take a shorthand per side, so table cells can share edges.

"styles": {
  "th": { "bold": true, "align": "center", "background": "#eef1f6", "border": "0.2 solid #8a94a6" },
  "num": { "align": "right", "border": { "bottom": "0.15 solid #b9c1cd" } }
},
"bands": { "detail": { "height": 6, "elements": [
  { "type": "field", "x": 140, "y": 0, "w": 40, "h": 6, "expr": "amount", "format": "#,##0", "styleName": "num", "style": { "bold": true } }
] } }

Name	Type	Description
`fontFamily, fontSize`	`string, number`	Font family and size in points (default 9).
`bold, italic, underline, strike`	`boolean`	Font styles.
`color, background`	`string`	Text and background color.
`align, valign`	`'left' \| 'center' \| 'right' \| 'justify'; 'top' \| 'middle' \| 'bottom'`	Horizontal and vertical alignment.
`padding`	`number \| [t, r, b, l]`	Inner padding in mm (default 1 horizontally, 0.5 vertically).
`border`	`true \| "0.3 solid #333" \| { top, right, bottom, left }`	true = 0.2mm solid black; a CSS-like string; or per side.
`lineHeight`	`number`	Multiple of the font size (default 1.25).
`wrap`	`boolean`	Wrap long text (default true); false cuts at the box edge.
`shrinkToFit`	`boolean`	Shrink the font until one line fits.
`letterSpacing`	`number`	Letter spacing in mm (spaced titles like 견 적 서).