Use when authoring or editing page.json / pages.json inside a Power BI PBIR report's definition/pages/ folder. Covers top-level page properties (name hex GUID vs displayName, displayOption as STRING not integer, width/height, type Default vs Tooltip, visibility AlwaysVisible vs HiddenInViewMode, verticalAlignment/horizontalAlignment), pages.json pageOrder + activePageName, canvas background vs outspace wallpaper distinction, visualInteractions NoFilter/Filter/Highlight overrides, page-level filterConfig, tooltip pages (section references the NAME guid not displayName), drillthrough pages with Column-typed filter, page folder renaming rules (folder freely renamable; page.j…