[Due for payment 2026-05-22] [TriNet] Add TriNet icon asset and shared icon registration

[yuwenmemon]

Parent: https://github.com/Expensify/Expensify/issues/625136
Design doc: https://docs.google.com/document/d/1TGdZYwm4_fvPOZtUziiz27bwVRqYm6HuEGopUYWNg8Y/edit

Scope

Add the TriNet square icon and register it in the shared Expensicons chunk and mocks. Mirrors gusto1.1 from the Gusto port. The icon is consumed by issues #6 (the connect flow / HR card) and downstream releases.

Implementation notes (from design doc)

• Add assets/images/integrationicons/trinet-icon-square.svg (design-provided).
• Register as TriNetSquare in src/components/Icon/chunks/expensify-icons.chunk.ts.
• Add mock export in src/components/Icon/__mocks__/Expensicons.ts.

Tests

No automated tests for icon assets. Manual verification:

• Run the app and confirm the icon renders correctly at the size used on the HR page card.
• Check both light and dark theme rendering.

Issue Owner

Current Issue Owner: @ShridharGoel

[melvin-bot]

Triggered auto assignment to Design team member for new feature review - @dubielzyk-expensify (NewFeature)

[Krishna2323]

@Expensify/design could you please share the icon? TIA!

[shawnborton]

Do you need it as a square or as a circle? I see examples of both in the repo from other integrations.

[Krishna2323]

@shawnborton We need a square format (like gusto-icon-square.svg). There's already a zenefits-icon-square.svg in the repo, but its the old Zenefits branding.

[shawnborton]

Here ya go: trinet-icon-square.svg.zip