1. Technological upgrade. No change in functionality.

1. Added support for imperial units. You can now select "Metric (millimeter, meter)" or "Imperial (inch, foot)" in the settings page.

1. Added the function of exporting PDF files. Currently it only supports exporting the summary of floor tiling, which can show the usage and starting point.

1. Optimized the "Cut" and "Withdraw" actions when editing floor plans, making the description clear. 2. When leaving a page, a confirmation dialog will pop up if there are unsaved changes.

1. Show perimeter and area of floor plan 2. Fixed the bug that points may overlap when drawing floor plans

1. Now you can set the "Perimeter Gap" (distance from the tile to the wall) to make the size calculation more accurate.

1. Added "intersection detection" when drawing floor plans, to avoid drawing wrong walls and affecting the calculation of tiles. 2. Added "usage details" function to show the size and quantity of tile cutting.

1. Add settings page

1. Show the total grout joint length for tile layout

1. Add undo/redo on floor plan page 2. Add undo/redo on tile layout page

1. Be able to save multiple tile layout

Usability optimization

Added wall tiling function.

1. Show size of floor plan. 2. Show distance between tiles and walls.

1. Add, update and delete floor plans. 2. Be able to reopen closed path then edit. 3. Decrease some padding to support smaller screen.