:root{--ngx-workflow-selection-color: #1a192b;--ngx-workflow-node-bg: #ffffff;--ngx-workflow-node-border: #1a192b;--ngx-workflow-node-text-color: #333333;--ngx-workflow-edge-color: #b1b1b7;--ngx-workflow-source-handle-color: #1a192b;--ngx-workflow-source-handle-border: #ffffff;--ngx-workflow-target-handle-color: #1a192b;--ngx-workflow-target-handle-border: #ffffff;--ngx-workflow-handle-valid-target-color: #00ff00;--ngx-workflow-handle-valid-target-border: #007f00;--ngx-workflow-background-color: #f8f8f8}