Add preset primary colors for shipped backgrounds

Signed-off-by: Christopher Ng <chrng8@gmail.com>

apps/theming/lib/Service/BackgroundService.php

@@ -49,67 +49,83 @@ class BackgroundService {
 		'anatoly-mikhaltsov-butterfly-wing-scale.jpg' => [
 			'attribution' => 'Butterfly wing scale (Anatoly Mikhaltsov, CC BY-SA)',
 			'attribution_url' => 'https://commons.wikimedia.org/wiki/File:%D0%A7%D0%B5%D1%88%D1%83%D0%B9%D0%BA%D0%B8_%D0%BA%D1%80%D1%8B%D0%BB%D0%B0_%D0%B1%D0%B0%D0%B1%D0%BE%D1%87%D0%BA%D0%B8.jpg',
+			'primary_color' => '#a53c17',
 		],
 		'bernie-cetonia-aurata-take-off-composition.jpg' => [
 			'attribution' => 'Cetonia aurata take off composition (Bernie, Public Domain)',
 			'attribution_url' => 'https://commons.wikimedia.org/wiki/File:Cetonia_aurata_take_off_composition_05172009.jpg',
 			'theming' => self::THEMING_MODE_DARK,
+			'primary_color' => '#56633d',
 		],
 		'dejan-krsmanovic-ribbed-red-metal.jpg' => [
 			'attribution' => 'Ribbed red metal (Dejan Krsmanovic, CC BY)',
 			'attribution_url' => 'https://www.flickr.com/photos/dejankrsmanovic/42971456774/',
+			'primary_color' => '#9c4236',
 		],
 		'eduardo-neves-pedra-azul.jpg' => [
 			'attribution' => 'Pedra azul milky way (Eduardo Neves, CC BY-SA)',
 			'attribution_url' => 'https://commons.wikimedia.org/wiki/File:Pedra_Azul_Milky_Way.jpg',
+			'primary_color' => '#4f6071',
 		],
 		'european-space-agency-barents-bloom.jpg' => [
 			'attribution' => 'Barents bloom (European Space Agency, CC BY-SA)',
 			'attribution_url' => 'https://www.esa.int/ESA_Multimedia/Images/2016/08/Barents_bloom',
+			'primary_color' => '#396475',
 		],
 		'hannes-fritz-flippity-floppity.jpg' => [
 			'attribution' => 'Flippity floppity (Hannes Fritz, CC BY-SA)',
 			'attribution_url' => 'http://hannes.photos/flippity-floppity',
+			'primary_color' => '#98415a',
 		],
 		'hannes-fritz-roulette.jpg' => [
 			'attribution' => 'Roulette (Hannes Fritz, CC BY-SA)',
 			'attribution_url' => 'http://hannes.photos/roulette',
+			'primary_color' => '#845334',
 		],
 		'hannes-fritz-sea-spray.jpg' => [
 			'attribution' => 'Sea spray (Hannes Fritz, CC BY-SA)',
 			'attribution_url' => 'http://hannes.photos/sea-spray',
+			'primary_color' => '#4f6071',
 		],
 		'kamil-porembinski-clouds.jpg' => [
 			'attribution' => 'Clouds (Kamil Porembiński, CC BY-SA)',
 			'attribution_url' => 'https://www.flickr.com/photos/paszczak000/8715851521/',
+			// Originally #0082c9 but adjusted for accessibility
+			'primary_color' => '#00639a',
 		],
 		'bernard-spragg-new-zealand-fern.jpg' => [
 			'attribution' => 'New zealand fern (Bernard Spragg, CC0)',
 			'attribution_url' => 'https://commons.wikimedia.org/wiki/File:NZ_Fern.(Blechnum_chambersii)_(11263534936).jpg',
+			'primary_color' => '#316b26',
 		],
 		'rawpixel-pink-tapioca-bubbles.jpg' => [
 			'attribution' => 'Pink tapioca bubbles (Rawpixel, CC BY)',
 			'attribution_url' => 'https://www.flickr.com/photos/byrawpixel/27665140298/in/photostream/',
 			'theming' => self::THEMING_MODE_DARK,
+			'primary_color' => '#7b4e7e',
 		],
 		'nasa-waxing-crescent-moon.jpg' => [
 			'attribution' => 'Waxing crescent moon (NASA, Public Domain)',
 			'attribution_url' => 'https://www.nasa.gov/image-feature/a-waxing-crescent-moon',
+			'primary_color' => '#005ac1',
 		],
 		'tommy-chau-already.jpg' => [
 			'attribution' => 'Cityscape (Tommy Chau, CC BY)',
 			'attribution_url' => 'https://www.flickr.com/photos/90975693@N05/16910999368',
+			'primary_color' => '#6a2af4',
 		],
 		'tommy-chau-lion-rock-hill.jpg' => [
 			'attribution' => 'Lion rock hill (Tommy Chau, CC BY)',
 			'attribution_url' => 'https://www.flickr.com/photos/90975693@N05/17136440246',
 			'theming' => self::THEMING_MODE_DARK,
+			'primary_color' => '#7f4f70',
 		],
 		'lali-masriera-yellow-bricks.jpg' => [
 			'attribution' => 'Yellow bricks (Lali Masriera, CC BY)',
 			'attribution_url' => 'https://www.flickr.com/photos/visualpanic/3982464447',
 			'theming' => self::THEMING_MODE_DARK,
-		]
+			'primary_color' => '#7f5700',
+		],
 	];
 
 	private IRootFolder $rootFolder;