# API Integration Guide ## v1.5.0 Custom Coloring and Partial Coloring features are introduced in the v1.5.0 release. {% embed url="" %} These features also introduce the breaking change to the result when reading the Atomicals assets. When you are requesting the list (typically `blockchain.atomicals.listscripthash` ), the structure `response.utxos.atomicals` has been updated. #### Before The field's type was a string list that contained the Atomical ID in that UTXO. ```json { "atomicals": [ "9025f03bcf9325f6071761b9aee00b462a0b43ed157c336e2e89e07f47ea6f66i0" ], "height": 847000, "index": 0, "txid": "b3ab9bf07db9075c1bbdef5638aef4941564a8afa3e0399ea4127285796b9ac1", "value": 546, "vout": 0 } ``` #### After The field's type is a record map that contains the Atomical ID and the corresponding Atomicals value in that UTXO. ```json { "atomicals": { "9025f03bcf9325f6071761b9aee00b462a0b43ed157c336e2e89e07f47ea6f66i0": 546 }, "height": 847000, "index": 0, "txid": "b3ab9bf07db9075c1bbdef5638aef4941564a8afa3e0399ea4127285796b9ac1", "value": 546, "vout": 0 } ``` Now the Atomicals value might not equal the UTXO value, so you shall read based on the Atomical ID to obtain the correct value. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.wizz.cash/wizz-wallet/dev/electrumx-guides/api-integration-guide.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.