Feat: The Begin and IterationStart operators cannot be deleted using shortcut keys #4287 (#4288)

Feat: Limit the iteration start node to only be the source node #4242 (#4260)

Feat: Add the iteration Node #4242 (#4247)

Theme switch support (#3568)

fix: fixed the issue of error when opening the canvas #918 (#1520)

fix: monitor changes in the data.form field of the categorize and relevant operators and then synchronize them to the edge #918 (#1469)

feat: highlight the nodes that the workflow passes through #918 (#1423)

feat: add FlowChatBox #918 (#1086)

feat: add custom edge (#1061)