Admin | Specifications for custom emojis

Admin | Specifications for custom emojis

2 min read
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I. Intro
This article describes the requirements and specifications for creating and uploading custom emojis.
Note: For information on how administrators can upload custom emojis for their organization, see Admin | Upload custom emojis for your organization.
II. Size and format specifications
Default emojis
Custom emojis
Image size (pixels)
Width: Between 96 px and 134 px (96 px is standard, super wide emojis can be stretched accordingly)
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Height: 96 px
Width: Between 96 px and 464 px
Note: There is no character limit for emoji text, as long as it meets the sizing criteria.
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Output file format
1x, PNG
1x, PNG
Output file size
100 KB maximum
100 KB maximum
Creation specifications
  • Need to leave an appropriate amount of space around the emoji and ensure a consistent visual size for emojis of same type (based on existing size).
  • Expression emojis: 2–6 px of space above and below the emoji recommended
  • Symbolic emojis: More blank space recommended
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  • 2–6 px bleed above and below the image (leave blank)
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Sample menu display
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III. Verify custom emojis
  1. Emojis show up in different sizes in different scenarios. The smallest display size is 18 px in height and the proportional px in width.
  1. After creating a custom emoji, it's recommended that you upload and view the emoji in actual device user interfaces to test its size and readability. You can check the readability of the sample organization emojis provided by Lark as a reference. We recommend that your text display size is no smaller than that of the sample emojis.
IV. Name specifications
The English emoji name must not exceed 50 characters.
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Ⅴ. Specifications for category logo and name
  • Category logo: The logo's actual display size on the interface will be 16*16px. However, when uploading the logo image, it should be 64*64px in size and in PNG format.
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  • Category name: Category names in English should not exceed 50 letters.
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Written by: Lark Help Center
Updated on 2024-10-10
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