You will need to have the following images prepared before you can save and publish your Roku app using the Roku App Builder. Below we’ve outlined both optional and required image assets. 

Image Assets 

App Icon

App-Icon.png

The App Icon image is the logo or branding that will appear in the Roku Channel Store next to all the other apps live in the marketplace. 

Image Requirements (all sizes required):

  • 246px x 140px, PNG (SD Store Image) 
  • 336px x 210px, PNG (HD Store Image)
  • 540px x 405px, PNG (FHD Store Image) - Required during submission

Consider the following safe zone guidelines:

  • Minimum Safe Zone (90% of UI)
  • Suggested Safe Zone (80% of UI) 

Splash Image

Splash-Image.png

The Splash Image displays when your app launches. We recommend a simple splash screen with your logo and little to no text.

Image Requirements: 

  • 720px x 480px, PNG (SD Splash Image) 
  • 1280px  x 720px, PNG (HD Splash Image)
  • 1920px x 1080px, PNG (FHD Splash Image)

Consider the following safe zone guidelines:

  • Minimum Safe Zone (90% of UI)
  • Suggested Safe Zone (80% of UI)

Overhang Logo (Optional)

Overhang-Logo.png

The Overhang Logo is positioned at the top left of your app but is not required.

Image Requirements:

  • Width: 375px
  • Height between 100-200px, PNG (with transparent background) 

Video or Playlist Thumbnails 

The Roku app reference template handles thumbnails differently. Once you select a video or playlist thumbnail to view the content within, Roku displays an enlarged background poster on the right with your playlist or video description on the left.

This is an automatic adjustment of the image in the app template. You may consider adjusting your thumbnails so that the critical content is farther away (at least 10%) from the thumbnail edges.

Assets Checklist 

Name

Size

Transparent?

Required?

App Icons - Channel Store Images

246px x 140px, PNG (SD Store Image)

336px x 210px, PNG (HD Store Image)

540px x 405px, PNG (FHD Store Image)

 No

 Yes

Splash Screen

720px x 480px, PNG (SD Splash Image)

1280px  x 720px, PNG (HD Splash Image)

1920px x 1080px, PNG (FHD Splash Image)

 No 

 Yes

Overhang Logo

Maximum height: 375px, PNG

 Yes

 No