Patch v1.3.0 — HexLemma Steam update #1581334

HexLemma 1.3.0 Hardcore quality-of-life, learn-as-you-go onboarding, and a tighter click feel. Added Undo in Hardcore mode. Misclicked a cell? An Undo button (or Ctrl/⌘+Z) takes moves back one at a time — Hardcore-only, for rescuing fat-fingers. It still won't tell you whether a move was right; wrong cells are only revealed once the board is full. Dismiss clues by hand in Hardcore. Clues no longer fade on their own — right-click a clue (or press A on a controller) to tuck it away, and click again to bring it back. How-to-Play teaches techniques, not just clue types. A clue-highlighting page plus two shortcuts: equality-chain propagation, and clearing a value from a solved cell's six neighbors. Hints follow your Swap-mouse-buttons setting. Campaign stages walk you through the controls. The first time you open a stage, the rule intro is followed by a How-to-Play tailored to that stage's cl...