Detailed Squarified Treemap Heatmap

Hello, I am interested in the R code for a specific project. I have data in excel that I export as a .csv to be opened in R. However, the programming in R is more advanced than I know. I would like to create a Squarified Treemap that sizes boxes based on ACB and color on return. The first level would be asset class. I would like the asset classes to have a colored border for each class. Within each asset class, there are multiple style categories. I would like the styles to have a dashed colored border. The final level is label. This is the box that is sized by ACB and color filled by return (dark red to dark green for + to -.) I would like a legend for border colors and a basic rectangle key for red/green with max/min values at ends. The label for each box should be level 3 and font scaled/rotated to fit in box. Level 1: Asset Class, Level 2: Style, Level 3: Label, Box Size: ACB, Heat Color: Return I have attached an example of the output I would like. I was unable to figure out the dashed style borders. I can provide sample data to programmer once chosen. Thanks!