NTP: Update images mentioned as having been over-compressed.

See brave/brave-browser#6904 (comment)
Fix brave/brave-browser#6904

browser/ui/webui/brave_webui_source.cc

@@ -91,6 +91,7 @@ void CustomizeWebUIHTMLSource(const std::string &name,
         { "c168145d6bf1abf2c0322636366f7dbe.svg", IDR_BRAVE_PRIVATE_TAB_TOR_IMG },               // NOLINT
         { "dbdc336ccc651b8a7c925b3482d6e65a.svg", IDR_BRAVE_PRIVATE_TAB_IMG }
       }
+#endif
 #if !defined(OS_ANDROID)
     }, {
       std::string("rewards"), {

components/brave_new_tab_ui/data/backgrounds.ts

@@ -15,119 +15,119 @@ export const images: NewTab.Image[] = [
     'source': 'anders-jilden.webp',
     'author': 'Anders Jildén',
     'link': 'https://unsplash.com/@andersjilden?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/uwbajDCODj4',
+    'license': 'https://unsplash.com/license'
   },
   {
     'name': 'ntp-fall-2019-2',
     'source': 'andreas-gucklhorn.webp',
     'author': 'Andreas Gücklhorn',
     'link': 'https://unsplash.com/@draufsicht?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/mawU2PoJWfU',
+    'license': 'https://unsplash.com/license'
   },
   {
     'name': 'ntp-fall-2019-3',
     'source': 'andy-mai.webp',
     'author': 'Andy Mai',
     'link': 'https://unsplash.com/@veroz?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/4knR_YzeUVc',
+    'license': 'https://unsplash.com/license'
   },
   {
     'name': 'ntp-fall-2019-4',
     'source': 'annie-spratt.webp',
     'author': 'Annie Spratt',
     'link': 'https://unsplash.com/@anniespratt?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/C9jP5AlgcuQ',
+    'license': 'https://unsplash.com/license'
   },
   {
     'name': 'ntp-fall-2019-5',
     'source': 'anton-repponen.webp',
     'author': 'Anton Repponen',
     'link': 'https://unsplash.com/@repponen?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/sfgH9dXcMRw',
+    'license': 'https://unsplash.com/license'
   },
   {
     'name': 'ntp-fall-2019-6',
     'source': 'ben-karpinski.webp',
     'author': 'Ben Karpinski',
     'link': 'https://www.benkarpinski.com/landscapes',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-7',
     'source': 'dc-cavalleri.webp',
     'author': 'D.C. Cavalleri',
     'link': 'https://gradivis.com',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-8',
     'source': 'joe-gardner.webp',
     'author': 'Joe Gardner',
     'link': 'https://unsplash.com/@josephgardnerphotography?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/4xv3lqnanYc',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-9',
     'source': 'louis-kim.webp',
     'author': 'Louis Kim',
     'link': 'http://louiskimphotography.com',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-10',
     'source': 'matt-palmer.webp',
     'author': 'Matt Palmer',
     'link': 'https://unsplash.com/@mattpalmer?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/veMnvjmfoxw',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-11',
     'source': 'oliwier-gesla.webp',
     'author': 'Oliwier Gesla',
     'link': 'https://www.instagram.com/oliwiergesla/',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-12',
     'source': 'svalbard-jerol-soibam.webp',
     'author': 'Jerol Soibam',
     'link': 'https://www.instagram.com/jerol_soibam',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-13',
     'source': 'will-christiansen-glacier-peak.webp',
     'author': 'Will Christiansen',
     'link': 'www.theskyfolk.com',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-14',
     'source': 'will-christiansen-ice.webp',
     'author': 'Will Christiansen',
     'link': 'www.theskyfolk.com',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'Contributor sent the hi-res version through email',
+    'license': 'Used with permission'
   },
   {
     'name': 'ntp-fall-2019-15',
     'source': 'xavier-balderas-cejudo.webp',
     'author': 'Xavier Balderas Cejudo',
     'link': 'https://unsplash.com/@xavibalderas?utm_source=unsplash&utm_medium=referral&utm_content=credit',
-    'originalUrl': '',
-    'license': ''
+    'originalUrl': 'https://unsplash.com/photos/kxIE049IZ1g',
+    'license': 'https://unsplash.com/license'
   }
 ]