You’re looking at the PCB Layout editor in Flux, specifically in its 3D‐camera view. Here’s what you’re seeing:
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Center panel
- Showing your board in 3D so you can inspect component placement, silkscreen, copper pours, etc.
- You can rotate (click-drag), pan (middle-mouse), and zoom (scroll) to examine details.
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Left panel
- Library & project tree (hidden here behind the 3D view) for adding parts or navigating sheets.
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Right panel
- Inspector, AI Chat, and ERC/DRC tools (collapsed while you’re in 3D).
If you want to switch back to the 2D PCB view, click the “2D” icon in the top toolbar (or press V then choose “2D View”).