diff --git a/apps/theming/lib/controller/themingcontroller.php b/apps/theming/lib/controller/themingcontroller.php
index 32d96203d6..ed3e23b0c1 100644
--- a/apps/theming/lib/controller/themingcontroller.php
+++ b/apps/theming/lib/controller/themingcontroller.php
@@ -217,41 +217,39 @@ class ThemingController extends Controller {
 		$elementColor = Util::elementColor($color);
 		if($color !== '') {
 			$responseCss .= sprintf(
-				'#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: %s}',
+				'#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: %s}'."\n",
 				$color
 			);
-			$responseCss .= sprintf('
-				input[type="checkbox"].checkbox:checked + label:before {
-					background-image:url(\'' . \OC::$WEBROOT . '/core/img/actions/checkmark-white.svg\');
-					background-color: %s; background-position: center center; background-size:contain;
-					width:12px; height:12px; padding:0; margin:1px 6px 7px 2px;
-        		}',
+			$responseCss .= sprintf('input[type="checkbox"].checkbox:checked + label:before {' .
+				'background-image:url(\'' . \OC::$WEBROOT . '/core/img/actions/checkmark-white.svg\');' .
+				'background-color: %s; background-position: center center; background-size:contain;' .
+				'width:12px; height:12px; padding:0; margin:1px 6px 7px 2px;' .
+        		'}' . PHP_EOL,
 				$elementColor
 			);
 		}
 		$logo = $this->config->getAppValue($this->appName, 'logoMime');
 		if($logo !== '') {
-			$responseCss .= sprintf('#header .logo {
-				background-image: url(\'./logo?v='.$cacheBusterValue.'\');
-				background-size: contain;
-			}
-			#header .logo-icon {
-				background-image: url(\'./logo?v='.$cacheBusterValue.'\');
-				background-size: contain;
-			}'
+			$responseCss .= sprintf(
+				'#header .logo {' .
+				'background-image: url(\'./logo?v='.$cacheBusterValue.'\')' .
+				'background-size: contain;' .
+				'}' . PHP_EOL .
+				'#header .logo-icon {' .
+				'background-image: url(\'./logo?v='.$cacheBusterValue.'\');' .
+				'background-size: contain;' .
+				'}' . PHP_EOL
 			);
 		}
 		$backgroundLogo = $this->config->getAppValue($this->appName, 'backgroundMime');
 		if($backgroundLogo !== '') {
-			$responseCss .= '#body-login {
-				background-image: url(\'./loginbackground?v='.$cacheBusterValue.'\');
-			}';
+			$responseCss .= '#body-login {background-image: url(\'./loginbackground?v='.$cacheBusterValue.'\');}' . PHP_EOL;
 		}
 		if(Util::invertTextColor($color)) {
-			$responseCss .= '#header .header-appname, #expandDisplayName { color: #000000; } ';
-			$responseCss .= '#header .icon-caret { background-image: url(\'' . \OC::$WEBROOT . '/core/img/actions/caret-dark.svg\'); } ';
-			$responseCss .= '.searchbox input[type="search"] { background: transparent url(\'' . \OC::$WEBROOT . '/core/img/actions/search.svg\') no-repeat 6px center; color: #000; }';
-			$responseCss .= '.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid { color: #000; border: 1px solid rgba(0, 0, 0, .5); }';
+			$responseCss .= '#header .header-appname, #expandDisplayName { color: #000000; }' . PHP_EOL;
+			$responseCss .= '#header .icon-caret { background-image: url(\'' . \OC::$WEBROOT . '/core/img/actions/caret-dark.svg\'); }' . PHP_EOL;
+			$responseCss .= '.searchbox input[type="search"] { background: transparent url(\'' . \OC::$WEBROOT . '/core/img/actions/search.svg\') no-repeat 6px center; color: #000; }' . PHP_EOL;
+			$responseCss .= '.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid { color: #000; border: 1px solid rgba(0, 0, 0, .5); }' . PHP_EOL;
 		}
 
 		\OC_Response::setExpiresHeader(gmdate('D, d M Y H:i:s', time() + (60*60*24*45)) . ' GMT');
diff --git a/apps/theming/tests/lib/controller/ThemingControllerTest.php b/apps/theming/tests/lib/controller/ThemingControllerTest.php
index 24eb0510f9..5ad6beb18e 100644
--- a/apps/theming/tests/lib/controller/ThemingControllerTest.php
+++ b/apps/theming/tests/lib/controller/ThemingControllerTest.php
@@ -327,7 +327,13 @@ class ThemingControllerTest extends TestCase {
 			->with('theming', 'backgroundMime', '')
 			->willReturn('');
 
-		$expected = new Http\DataDownloadResponse('#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #000}', 'style', 'text/css');
+		$expectedCss = '#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #000}' . PHP_EOL .
+			'input[type="checkbox"].checkbox:checked + label:before {' .
+			'background-image:url(\'' . \OC::$WEBROOT . '/core/img/actions/checkmark-white.svg\');' .
+			'background-color: #000; background-position: center center; background-size:contain;' .
+			'width:12px; height:12px; padding:0; margin:1px 6px 7px 2px;' .
+			'}' . PHP_EOL;
+		$expected = new Http\DataDownloadResponse($expectedCss, 'style', 'text/css');
 		$expected->cacheFor(3600);
 		@$this->assertEquals($expected, $this->themingController->getStylesheet());
 	}
@@ -354,7 +360,17 @@ class ThemingControllerTest extends TestCase {
 			->with('theming', 'backgroundMime', '')
 			->willReturn('');
 
-		$expected = new Http\DataDownloadResponse('#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #fff}#header .header-appname, #expandDisplayName { color: #000000; } #header .icon-caret { background-image: url(\'' . \OC::$WEBROOT . '/core/img/actions/caret-dark.svg\'); } .searchbox input[type="search"] { background: transparent url(\'' . \OC::$WEBROOT . '/core/img/actions/search.svg\') no-repeat 6px center; color: #000; }.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid { color: #000; border: 1px solid rgba(0, 0, 0, .5); }', 'style', 'text/css');
+		$expectedCss = '#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #fff}' . PHP_EOL .
+			'input[type="checkbox"].checkbox:checked + label:before {' .
+			'background-image:url(\'' . \OC::$WEBROOT . '/core/img/actions/checkmark-white.svg\');' .
+			'background-color: #969696; background-position: center center; background-size:contain;' .
+			'width:12px; height:12px; padding:0; margin:1px 6px 7px 2px;' .
+			'}' . PHP_EOL .
+			'#header .header-appname, #expandDisplayName { color: #000000; }' . PHP_EOL .
+			'#header .icon-caret { background-image: url(\'' . \OC::$WEBROOT . '/core/img/actions/caret-dark.svg\'); }' . PHP_EOL .
+			'.searchbox input[type="search"] { background: transparent url(\'' . \OC::$WEBROOT . '/core/img/actions/search.svg\') no-repeat 6px center; color: #000; }' . PHP_EOL .
+			'.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid { color: #000; border: 1px solid rgba(0, 0, 0, .5); }' . PHP_EOL;
+		$expected = new Http\DataDownloadResponse($expectedCss, 'style', 'text/css');
 		$expected->cacheFor(3600);
 		@$this->assertEquals($expected, $this->themingController->getStylesheet());
 	}
@@ -381,14 +397,15 @@ class ThemingControllerTest extends TestCase {
 			->with('theming', 'backgroundMime', '')
 			->willReturn('');
 
-		$expected = new Http\DataDownloadResponse('#header .logo {
-				background-image: url(\'./logo?v=0\');
-				background-size: contain;
-			}
-			#header .logo-icon {
-				background-image: url(\'./logo?v=0\');
-				background-size: contain;
-			}', 'style', 'text/css');
+		$expectedCss = '#header .logo {' .
+			'background-image: url(\'./logo?v=0\')' .
+			'background-size: contain;' .
+			'}' . PHP_EOL .
+			'#header .logo-icon {' .
+			'background-image: url(\'./logo?v=0\');' .
+			'background-size: contain;' .
+			'}' . PHP_EOL;
+		$expected = new Http\DataDownloadResponse($expectedCss, 'style', 'text/css');
 		$expected->cacheFor(3600);
 		@$this->assertEquals($expected, $this->themingController->getStylesheet());
 	}
@@ -415,9 +432,8 @@ class ThemingControllerTest extends TestCase {
 			->with('theming', 'backgroundMime', '')
 			->willReturn('text/svg');
 
-		$expected = new Http\DataDownloadResponse('#body-login {
-				background-image: url(\'./loginbackground?v=0\');
-			}', 'style', 'text/css');
+		$expectedCss = '#body-login {background-image: url(\'./loginbackground?v=0\');}' . PHP_EOL;
+		$expected = new Http\DataDownloadResponse($expectedCss, 'style', 'text/css');
 		$expected->cacheFor(3600);
 		@$this->assertEquals($expected, $this->themingController->getStylesheet());
 	}
@@ -444,16 +460,23 @@ class ThemingControllerTest extends TestCase {
 			->with('theming', 'backgroundMime', '')
 			->willReturn('image/png');
 
-		$expected = new Http\DataDownloadResponse('#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #000}#header .logo {
-				background-image: url(\'./logo?v=0\');
-				background-size: contain;
-			}
-			#header .logo-icon {
-				background-image: url(\'./logo?v=0\');
-				background-size: contain;
-			}#body-login {
-				background-image: url(\'./loginbackground?v=0\');
-			}', 'style', 'text/css');
+		$expectedCss = '#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #000}' . PHP_EOL .
+			'input[type="checkbox"].checkbox:checked + label:before {' .
+			'background-image:url(\'' . \OC::$WEBROOT . '/core/img/actions/checkmark-white.svg\');' .
+			'background-color: #000; background-position: center center; background-size:contain;' .
+			'width:12px; height:12px; padding:0; margin:1px 6px 7px 2px;' .
+			'}' . PHP_EOL;
+		$expectedCss .= '#header .logo {' .
+			'background-image: url(\'./logo?v=0\')' .
+			'background-size: contain;' .
+			'}' . PHP_EOL .
+			'#header .logo-icon {' .
+			'background-image: url(\'./logo?v=0\');' .
+			'background-size: contain;' .
+			'}' . PHP_EOL;
+		$expectedCss .= '#body-login {background-image: url(\'./loginbackground?v=0\');}' . PHP_EOL;
+
+		$expected = new Http\DataDownloadResponse($expectedCss, 'style', 'text/css');
 		$expected->cacheFor(3600);
 		@$this->assertEquals($expected, $this->themingController->getStylesheet());
 	}
@@ -479,16 +502,27 @@ class ThemingControllerTest extends TestCase {
 			->with('theming', 'backgroundMime', '')
 			->willReturn('image/png');
 
-		$expected = new Http\DataDownloadResponse('#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #fff}#header .logo {
-				background-image: url(\'./logo?v=0\');
-				background-size: contain;
-			}
-			#header .logo-icon {
-				background-image: url(\'./logo?v=0\');
-				background-size: contain;
-			}#body-login {
-				background-image: url(\'./loginbackground?v=0\');
-			}#header .header-appname, #expandDisplayName { color: #000000; } #header .icon-caret { background-image: url(\'' . \OC::$WEBROOT . '/core/img/actions/caret-dark.svg\'); } .searchbox input[type="search"] { background: transparent url(\'' . \OC::$WEBROOT . '/core/img/actions/search.svg\') no-repeat 6px center; color: #000; }.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid { color: #000; border: 1px solid rgba(0, 0, 0, .5); }', 'style', 'text/css');
+
+		$expectedCss = '#body-user #header,#body-settings #header,#body-public #header,#body-login,.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid {background-color: #fff}' . PHP_EOL .
+			'input[type="checkbox"].checkbox:checked + label:before {' .
+			'background-image:url(\'' . \OC::$WEBROOT . '/core/img/actions/checkmark-white.svg\');' .
+			'background-color: #969696; background-position: center center; background-size:contain;' .
+			'width:12px; height:12px; padding:0; margin:1px 6px 7px 2px;' .
+			'}' . PHP_EOL;
+		$expectedCss .= '#header .logo {' .
+			'background-image: url(\'./logo?v=0\')' .
+			'background-size: contain;' .
+			'}' . PHP_EOL .
+			'#header .logo-icon {' .
+			'background-image: url(\'./logo?v=0\');' .
+			'background-size: contain;' .
+			'}' . PHP_EOL;
+		$expectedCss .= '#body-login {background-image: url(\'./loginbackground?v=0\');}' . PHP_EOL;
+		$expectedCss .= '#header .header-appname, #expandDisplayName { color: #000000; }' . PHP_EOL .
+			'#header .icon-caret { background-image: url(\'' . \OC::$WEBROOT . '/core/img/actions/caret-dark.svg\'); }' . PHP_EOL .
+			'.searchbox input[type="search"] { background: transparent url(\'' . \OC::$WEBROOT . '/core/img/actions/search.svg\') no-repeat 6px center; color: #000; }' . PHP_EOL .
+			'.searchbox input[type="search"]:focus,.searchbox input[type="search"]:active,.searchbox input[type="search"]:valid { color: #000; border: 1px solid rgba(0, 0, 0, .5); }' . PHP_EOL;
+		$expected = new Http\DataDownloadResponse($expectedCss, 'style', 'text/css');
 		$expected->cacheFor(3600);
 		@$this->assertEquals($expected, $this->themingController->getStylesheet());
 	}