Add product icon > partner verified

Purpose

Add a new product icon: partner-verified

Screenshots

• Example PNG:
• Screen recording with configurations:
  icon-config-test

Checklist

For a new icon and/or illustration:

• Link to related design issue: #405 (closed)
• If this adds an icon ensure that it follows the new icon checklists.
• If this adds an illustration ensure that it follows the new illustration checklists.

For third-party trademarks:

• If this adds or updates an icon or illustration that includes a third-party trademark, ensure that it follows the process for adding third-party trademarks to GitLab.

Closes #405 (closed)