On the Subject of Purple Sudoku

I can see my house from up here!

• The palette to the right of the sudoku grid is ordered 0-9. Any numbers referenced in this manual refer to the numerical value of the corresponding colour in the palette.
• Selecting any colour from the palette then selecting any cells will apply that colour to those cells.
• Pressing the ‘reset’ button will reset the sudoku grid to its starting state.
• Upon pressing the ‘submit’ button, if the state of the grid is valid, the module will solve. If the state of the grid is not valid, a strike will be incurred.

Skyscraper Sudoku Rules

Fill the grid with colours such that no colour appears more than once in any row, column, or 3x3 box.
Each cell is a building as many stories tall as its value.
The clue lights around the edge of the grid indicate how many buildings can be seen from that perspective in the respective row or column.
Taller buildings obscure shorter buildings behind them.
A row of [1 9 3 4 5 6 2 8 7] would see two buildings from the left (1 and 9), and three buildings from the right (7, 8, and 9).