User Story

As an end-user, I want to use syntax highlighting to improve the readability of my formula.

Acceptance Criteria

1. Use different colors to differentiate texts, numbers, and cell references in a formula. (Each reference is assigned a different color in a palette of eight).
2. After clicking the formula bar or double-clicking the cell, highlight the cells and ranges on the sheet referenced in the formula with the corresponding colors.
3. When the caret is positioned on a parenthesis using either the mouse or keyboard (left and right arrow keys), highlight the corresponding parenthesis pair (note only if there is a matching pair).

Details

Put document or specification reference