Token repository [https://github.com/trustwallet/assets](https://github.com/trustwallet/assets) (repo) is a source of images used by [Trust Wallet](https://trustwallet.com/) including:
1. [ERC20](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md), ERC223 tokens on Ethereum compatible networks supported by Trust Wallet such as:
5. dApp images available in `Browser` section in Trust Wallet and at https://dapps.trustwallet.com and bookmarks icons. [read requirments](#dApp-image-naming-requirments). Also you can submit dApp to our list [read more](#dApp-subbmition-and-listing-requirements)
Whenever you updating or deleting asset on behalf of asset owner or just found outdated information, please provide link to the source saying about changes. That will help to speed up review process
- name：file name requirements for: `logo.png` name, but [folder naming](#repository-structure) where they placed is most important part of contribution
`assets` folder contains token folders named by smart contract address in `checksum address` for Ethreum like networks and inside of it `logo.png` - image representation. Note: Lowercased or uppercased contract addresses considered invalid. You can find checksum address by searching on [ etherscan.io](https://etherscan.io), for example stablecoin [DAI](https://etherscan.io/address/0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359) checksum address located at the top left corner of the page and has both uppercase and lowercase characters. Or [convert Ethereum address to Checksum address](https://piyolab.github.io/sushiether/RunScrapboxCode/?web3=1.0.0-beta.33&code=https://scrapbox.io/api/code/sushiether/web3.js_-_Ethereum_%E3%81%AE%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%82%92%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF%E3%82%B5%E3%83%A0%E4%BB%98%E3%81%8D%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%81%AB%E5%A4%89%E6%8F%9B%E3%81%99%E3%82%8B/demo.js). For other networks address must be specified as it was originated on a chain, e.g TRON TRC10: `1002000`, TRON TRC20: `TR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t` etc ...
`validators` folder contains folders: `assets` same structure as above and `list.json` information about validators.
`blacklist.json` and `whitelist.json` files you may find in folders like `tron`, `ethereum` but not limited to, contain list of address approved based on many criterias (TODO add criterias) and disapproved based on factors such as scam, outdated, abandoned contracts etc ... .
5. Add Tezos validator info [](https://github.com/trustwallet/assets/tree/master/blockchains/tezos/validators/list.json)
6. Add Ethereum contract address to blacklist [](https://github.com/trustwallet/assets/tree/master/blockchains/ethereum/blacklist.json)
7. Add TRON TRC10 ID or TRC20 owner contract address to whitelist [](https://github.com/trustwallet/assets/tree/master/blockchains/tron/whitelist.json)
3. Press on `Fork` in the top right corner, wait for process to complete
4. Navigate to desire chain folder you want to add asset
5. Prepare folder with image on your computer
7. Simply drag and drop folder from step 5 to active window
8. In `Commit changes` box:
-`Add files via upload` add meaningfull comment what you adding to the repo
- optional: In `Add an optional extended description` write a comment about upload
- optional: adjust fork branch nam
9. Click on `Propose changes`
10. Press on `Create pull request`
13. Once tests have completed and verified that your image follows all requirements, a maintainer will merge it. In 5-10 minutes your token will have the updated image instead of plain logo in Trust Wallet
Both clients, Android and iOS keep old image cache for up to 7 days. In order to see changes immediately, reinstall Trust Wallet. But as always, make sure you have a backup of all your wallets.
### Why i don't see my token in search after PR was merged ?
After PR was merged, set of cron workers will update token status normally with in 10 minutes and sometimes up to 30 minutes and token became visible in search result.
