v1.3.0

Compared to the previous version:

• Supports themes and allows switching color schemes
• Fixed the issue with black borders when pasting bitmaps
• Added an input box to the input table
• Supports formulas in the input table
• Fixed issues with data storage when editing cells and input boxes
• Added a clear formatting function to separate data and formatting
• Added formula expansion functionality

This version has implemented most of the planned functions and will enter the document update and maintenance phase.
No more efforts will be invested in new function development at this stage.

Full Changelog: v1.2.0...v1.3.0