- add `removeAllMarks` function to inline/types.js
- implement `applyRemoveAllMarks` handler in BlockEditor client
- add `TextClearIcon` button with separator in Toolbar component
- expose `onClearMarks` prop on InlineToolbar
- update README to document new clear formatting action
- update blockRegistry to accept ReactNode icons instead of emoji strings
- replace emoji icons in all built-in block types with icon components from shared icons
- add `isHexColor` and `collectUsedColors` helpers to inline/types.js
- extend `color` and `highlight` marks to accept hex color strings in addition to palette keys
- pass `usedColors` (collected from document) to InlineToolbar
- update InlineToolbar color popover to show used colors and a free color input
- add new icons to shared icons index
- update README to reflect icon, color, and toolbar popover changes
- swap PlusSignIcon for Add01Icon in Block.client.js add button
- remove PlusSignIcon export from shared icons index
- update README to reflect renamed icon
- replace `+` and `⋮⋮` text with `PlusSignIcon` and `DragDropVerticalIcon` components
- add `Add01Icon` export to shared icons index
- update README to reference icon names and link to icons source
- add `isSelected` prop and overlay highlight to Block component
- implement double ctrl+a: first selects block content, second selects all blocks
- add `onSelectAllBlocks` callback prop to Block
- add `selectedBlockIds` state and `selectAllBlocks`/`deleteSelectedBlocks` helpers in BlockEditor
- detect cross-block native selection via `selectionchange` and convert to block selection
- handle backspace/delete key to remove all selected blocks
- clear block selection on click outside or focus change
- update README to document multi-block selection behaviour
- export new icons used by the feature
- swap `ChevronDownIcon` and `ChevronRightIcon` for `ArrowDown01Icon` and `ArrowRight01Icon` in AdminSidebar and AdminTop
- add `ArrowDown01Icon`, `ArrowLeft01Icon`, `ArrowRight01Icon`, and `ArrowUp01Icon` to shared icons index
- remove `ChevronDownIcon` and `ChevronRightIcon` from shared icons index
- replace inline checkmark svg in ColorPicker with Tick02Icon
- replace inline sort arrow svg in Table with ArrowDown01Icon
- add ArrowDown01Icon to shared icons index
- replace inline hamburger/close svg with Menu01Icon component in AdminTop
- replace inline chevron svg with ChevronRightIcon component for breadcrumbs
- add ChevronRightIcon and Menu01Icon imports to AdminTop
- fix UserCircle02Icon fill values from hardcoded #ffffff to currentColor
- add `Logout02Icon` to admin top bar logout button
- add `SmartPhone01Icon` and `ComputerIcon` to profile page session list
- update icons index to use hugeicons react package imports
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