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Question

Plugin UI displays white lines at bottom container corners

  • March 29, 2026
  • 1 reply
  • 3 views

james besser

Hey, I've been building a Figma plugin and I'm noticing  white lines appearing at the bottom corners of the plugin container. I’m trying to remove it and having no luck. I’m wondering if this is an issue from Figma side.          

                                                            

What's happening:                                                     

When the plugin displays in the modal, there's a white artifact visible at the bottom-left and bottom-right rounded corners. My plugin dimensions are 360px × 480px. The actual functionality works great but the UI display has this  white showing through.

 

What I think is going on:                                             

Looking at the iframe code, I see the outer wrapper has background-color: #ffffff which seems to be bleeding through when Figma renders the rounded corners of the container. It's like the   white background of the iframe is peeking through the corner radius.

 

Weird thing though:                                                   
When the plugin content becomes scrollable, the white corners completely disappear. So it feels like a rendering quirk with how the iframe background composites with the rounded container corners.      

Do y’all have any ideas on how to fix??? Thank you!          

1 reply

james besser
  • Author
  • New Member
  • March 29, 2026

Full plugin look