Sudoku Studio v1.3.0 Update — Sudoku Studio Steam update #1351512

Added modes: Skyscraper Sudoku, Skyscraper Sudoku (4x4)Added Practice Mode for all frame-based Sudoku variantsAdded Workshop support for all frame-based Sudoku variantsAdded Master difficulty for Classic Sudoku and Frame Sudoku — unlocked after completing 30 puzzles per modeAdded achievement support for Butterfly Sudoku and Skyscraper SudokuAdded Daily Challenge Steam Leaderboard — view global completion times, average time, and rankingsAdded Auto Pencil Marks — automatically fill candidate numbers for empty cells (enable in Settings)Improved: Draft (candidate) toggles, paste, and auto-fill are now included in the undo/redo systemAdded: M key to auto-pencil candidates for the currently selected cellAdded: Frame Sudoku combination hints — select a border cell to view possible number combos with manual exclusionFixed: Product Sudoku — second diagonal clue not rendering when two clues overl...