Add Ethereum STRATO (STRATO) token metadata and icon

[michaelbtan]

Adds CAIP-19 metadata and icon for Ethereum STRATO (STRATO).

• Network: Ethereum mainnet (eip155:1)
• Contract: 0x4c93B9FbF7Fd1777CCBcBc538B1d0a8b58fB1ad6
• Symbol: STRATO
• Decimals: 18 (verified on-chain)
• Source: https://www.coingecko.com/en/coins/ethereum-strato

Name, symbol, and decimals were verified against the contract on-chain. The icon is the official STRATO brand logo, placed on a solid white background with safe-area padding per STYLEGUIDE.md. npm run asset:verify passes and the full test suite (698 tests) is green.

Files:

• metadata/eip155:1/erc20:0x4c93B9FbF7Fd1777CCBcBc538B1d0a8b58fB1ad6.json
• icons/eip155:1/erc20:0x4c93B9FbF7Fd1777CCBcBc538B1d0a8b58fB1ad6.png

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Note

Low Risk
Additive metadata-only JSON with no runtime or security logic changes; wrong token details would only affect display labels.

Overview
Adds three new Ethereum mainnet (eip155:1) ERC-20 CAIP-19 metadata records, each with name, symbol, 18 decimals, erc20: true, and a relative logo path to a matching icon under icons/.

STRATO (0x4c93…1ad6), USDST (0xAEBc…6a8b), and GOLDST (0xF6C8…57cb) are registered the same way as existing mainnet token JSON in this repo.

^{Reviewed by Cursor Bugbot for commit e5d8e1d. Bugbot is set up for automated code reviews on this repo. Configure here.}

[michaelbtan]

Also adding Ethereum USDST (USDST) in this PR — the STRATO network's USD-pegged stablecoin, from the same issuer as the STRATO token above.

• Network: Ethereum mainnet (eip155:1)
• Contract: 0xAEBcDBD9f8b1422Ab31073D7408C8cAd83ca6a8b
• Name / Symbol: Ethereum USDST / USDST
• Decimals: 18
• Source: https://www.coingecko.com/en/coins/strato-usdst

Name, symbol, and decimals were read directly from the contract via eth_call on mainnet (name() → Ethereum USDST, symbol() → USDST, decimals() → 0x12). CoinGecko lists the display name as "STRATO USDST"; I used the on-chain value for consistency with Ethereum STRATO.

Icon: the only brand raster available is 250×250, which would be blurry at larger sizes and has no safe-area padding, so the icon is a hand-built pure-vector SVG rendition: ring colors and arc boundaries sampled from the official raster (navy #16338E / red #E93323 / blue #4986F2 bands at exact 120° thirds, navy #0D2A72 outer rim), dollar mark traced to vector paths. Per STYLEGUIDE.md it uses a solid white square background filling the artboard, artwork within the 80% safe area (10% padding), and no <image>, <style>, filters, or nested SVGs.

Files:

• metadata/eip155:1/erc20:0xAEBcDBD9f8b1422Ab31073D7408C8cAd83ca6a8b.json
• icons/eip155:1/erc20:0xAEBcDBD9f8b1422Ab31073D7408C8cAd83ca6a8b.svg

npm run asset:verify passes for both assets, node buildindex.js produces no change to contract-map.json, and the full test suite (698 tests) is green.

Note: I did not add a labels/ entry. USDST is a stablecoin and stable_coin is the label used for USDT/USDC/DAI, but per labels/README.md trust-signal data is curated by MetaMask teams — happy to add {"labels": ["stable_coin"]} if reviewers would prefer it in this PR.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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