A dashboard now carries the canvas it is drawn for (canvas_width / canvas_height, presets plus two numbers in the settings panel). Editor and wall panel render that surface at its true pixel size and scale it to fit, so a side panel opening changes only the scale — never the arrangement being made. With the width and column count known the dot pitch is exact, (width + gap) / columns by row height + gap, so a dot sits where every widget corner snaps. The wall panel shows no dots. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01H7LwYgJfpkbLCTeiAf8U4A