Source Connections
Each Connection in a flow can be used for both Source and Target operations based on what the Connector and the associated datastore support. For example, if you have a Salesforce Connection and you use a Query block for that Connection in the flow, the Query is a Source operation, therefore, Salesforce is the Source for that block. If you use a Create block for the Salesforce Connection in the flow, Create is a Target operation, and Salesforce is the Target for that block.
Connections are sorted based on the order in which they were added to the flow. The color of the blocks associated with a Connection is determined by the order of the Connections. Control blocks are always light purple, the first Connection Blocks are always orange, and Blocks for the second Connection are yellow, and so on up to eleven Connections.