diff --git a/CHECKSUMS.txt b/CHECKSUMS.txt
new file mode 100644
index 0000000..809267f
--- /dev/null
+++ b/CHECKSUMS.txt
@@ -0,0 +1,30 @@
+13E18CEACF8F4DB244D86D522AADFDA94BF4BE7A05856ACC710018BCCA03ED0C  AUTHORS.md
+20C672DDECFFF00B284AD71032A0A617851606032EEA7360E687A2D54EF0149C  docs/COMPATIBILITY-MATRIX.md
+22AC84BD655BD8BD71F70538734BE7AAE84342AA561EC40AB07770B9584811C3  .github/PULL_REQUEST_TEMPLATE.md
+252390C5F743D5D35FDE2A4861A178ADA49B7FD5CE79D3E3C13201D1FF93ED43  assets/banner.svg
+409D6AFCD93585021F1A554A63EFB8C67D07987820E1D0D8ED6BE0B474E5C426  .github/FUNDING.yml
+477BBF58F7FC6A1E422F3D61D5489B2ED27B8D391D9DFBCA997D693704A068FE  CODE_OF_CONDUCT.md
+4BC67EFF11DBE142783D49018F13C3D7B19859B9FF66051CCA430F639BB16A89  .github/workflows/ci.yml
+6CB6B870AFE8694EE75FD9643089D64B856A0A7ABD73D4829140AB0838277C67  build/Invoke-Validation.ps1
+6FD3AB9304532C159C00EE07D11ECEB28FE5AF656A9E7AD9664C7AB27BA6ABBD  .github/ISSUE_TEMPLATE/config.yml
+712D7EF74DB0E9E87AE14D6F5891CEB6FC6C3C38DDE4D6E331F1E77AF889B2FF  assets/css/style.scss
+82E480FD2D1C96D08DAA7A5573B52C1F1A33F14BEF4DDDEE9F322FB4C4B464B5  .gitignore
+8819917BBF41564EE48BDC9CA6169DB3768A14FCFB09E823BCFBF8D0C59CE7CD  README.md
+88F4422226987D7A16D4D9B53DD7192EC28D9EC942906F7706E86B949D923A19  assets/favicon.svg
+9E0334C5EFC6369D003C920E58F075EB7E54A386EA5B7472A5A127DBDAD5545A  TASK-SEQUENCE.md
+AAEE3EB231274105D19F95D14CCFC81D6A783FEC30D41ABECE356AC3075CFAB0  assets/banner-compact.svg
+ADB0FF6DF54DE634079C2F363FD6D6062A3F7559D011DCE52FD13F0784592774  Tests/Invoke-OSDDiskLayout.Tests.ps1
+AFCE72268C9532C4D571A39BB354DAF5565EBC721533CD0E7D0093DC40B7A4C2  CONTRIBUTING.md
+B3FA5B1E4D7F52FEF40C54F52D4B0C6D63EED3F3193E99976D8EDE75DFD87482  PSScriptAnalyzerSettings.psd1
+B6818E77A77718C171BAA15D003A9E67F9A9B6CAB42F9EADD3068F5491F5ACB0  LICENSE
+B9E64B826F91346D3E32844DC123263582DE7ECB8692112BE19FDAFA981F894E  Tests/Branding.Tests.ps1
+C04D3716FFBE1B1E44C02F244D8378137EDCA2C44D7F87A9A7A49E7CF267FB50  assets/README.md
+C784516C6D8945C6F11C9AB93B80C3C92B7B397FFF59C6188B6E313C63C79F72  .github/ISSUE_TEMPLATE/bug_report.yml
+CAEC6646EA6042A17E283F86545A5E591CACF8876C60740FB5436D9F32171D2B  .github/ISSUE_TEMPLATE/feature_request.yml
+D1D27B54A16CC7C714F34F2D57D3D796160AA74868A34288802E6BD2DAD27C5E  Invoke-OSDDiskLayout.ps1
+D1D27B54A16CC7C714F34F2D57D3D796160AA74868A34288802E6BD2DAD27C5E  Scripts/Invoke-OSDDiskLayout.ps1
+DB2ECC787E09B4F361DF6B7DFE917D216EDE424D918AD612A6B3D102274EB749  SECURITY.md
+E4ED3A5D957732F39605FB05A06E0A4386453B770BE82BCCFB10B4617B28CF65  _layouts/default.html
+EB5660739C7FDB81C9B9FEF58B05A71F504743DCE5599B58A9AE8F71929092F0  index.md
+ECBFF2063237206547F105EB1D155833C0DA70DEF69A3BF09CCFF8D0242EC69C  _config.yml
+F57D39E02B58937C127B01FA7CBF635005EAED3CDDB43A9DBA9C084F8C81D63E  RELEASE-NOTES.md
diff --git a/README.md b/README.md
index cd6be40..01b2f0a 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 <p align="center">
   <picture>
     <source media="(max-width: 720px)" srcset="assets/banner-compact.svg?v=1.0.0" width="640">
-    <img src="assets/banner.svg?v=1.0.0" alt="ConfigMgr OSD Disk Partition Layout; Invoke-OSDDiskLayout.ps1; Windows PowerShell 5.1." width="1280">
+    <img src="assets/banner.svg?v=1.0.0" alt="ConfigMgr OSD Disk Partition Layout; Invoke-OSDDiskLayout.ps1; Windows PowerShell 5.1." width="1280" height="320">
   </picture>
 </p>
 
diff --git a/Tests/Branding.Tests.ps1 b/Tests/Branding.Tests.ps1
index d71c0d5..ef55ae9 100644
--- a/Tests/Branding.Tests.ps1
+++ b/Tests/Branding.Tests.ps1
@@ -23,9 +23,9 @@ Describe 'Project branding and Pages shell' {
 
     It 'uses responsive banners with descriptive alternative text on both landing pages' {
         $Readme | Should -Match '<source[^>]+banner-compact\.svg'
-        $Readme | Should -Match '<img[^>]+banner\.svg[^>]+alt="[^"]+"'
+        $Readme | Should -Match '<img[^>]+banner\.svg[^>]+alt="[^"]+"[^>]+width="1280"[^>]+height="320"'
         $Index | Should -Match '<source[^>]+banner-compact\.svg'
-        $Index | Should -Match '<img[^>]+banner\.svg[^>]+alt="[^"]+"'
+        $Index | Should -Match '<img[^>]+banner\.svg[^>]+alt="[^"]+"[^>]+width="1280"[^>]+height="320"'
     }
 
     It 'keeps the destructive warning and unvalidated deployment boundary visible' {
diff --git a/index.md b/index.md
index 5e7ea3f..f4517f5 100644
--- a/index.md
+++ b/index.md
@@ -5,7 +5,7 @@ title: ConfigMgr OSD Disk Partition Layout
 <p align="center">
   <picture>
     <source media="(max-width: 720px)" srcset="assets/banner-compact.svg?v=1.0.0" width="640">
-    <img src="assets/banner.svg?v=1.0.0" alt="ConfigMgr OSD Disk Partition Layout; Invoke-OSDDiskLayout.ps1; Windows PowerShell 5.1." width="1280">
+    <img src="assets/banner.svg?v=1.0.0" alt="ConfigMgr OSD Disk Partition Layout; Invoke-OSDDiskLayout.ps1; Windows PowerShell 5.1." width="1280" height="320">
   </picture>
 </p>