Standard processing in PixInsight follows a specific path regarding the STF link:
Because raw data is "linear," it looks nearly black to the human eye. pixinsight lerar link
When you use an Unlinked STF (Ctrl + Click the "Radioactive" icon), PixInsight stretches the channels separately, which removes that heavy green or red cast and lets you see the actual nebula or galaxy detail. The Workflow: When to Toggle the Link Standard processing in PixInsight follows a specific path