gistfile1.txt

# If object
page.htmlTag.attributes.style = TYPO3.TypoScript:If {
	condition = ${q(node).property('image')}

	then = TYPO3.TypoScript:ResourceUri {
		resource = ${q(node).property('image').resource}
		@process.wrap = ${"background-image: url('" + value + "');"}
	}
}

# @if meta property
page.htmlTag.attributes.style = TYPO3.TypoScript:ResourceUri {
	resource = ${q(node).property('image').resource}
	@process.wrap = ${"background-image: url('" + value + "');"}
	@if = ${q(node).property('image')
}

# Render result directly in Matcher object
page.htmlTag.attributes.style = TYPO3.TypoScript:Case {
	backgroundImageExists {
		condition = ${q(node).property('image')}
		result = TYPO3.TypoScript:ResourceUri {
			resource = ${q(node).property('image').resource}
			@process.wrap = ${"background-image: url('" + value + "');"}
		}
	}
}