v1.1.9

• Fixed: Meaningless warning in the simplebar template.
• Fixed: Clustering error when heatmap input contains a single column.
• Added: Support for simultaneous tree output of Hub.
• Fixed: Bug when using the + operation with heatmap units.
• Added: Color sorting algorithm with support for custom root colors.
• Added: Two tree construction methods (based on string vectors and data frame row/column names).

Full Changelog: https://tongzhou2017.github.io/itol.toolkit/articles/v1.1.9.html