main
ENH: `Styler.apply_index` and `Styler.applymap_index` for conditional formatting of column/index headers (#41893)
ENH: add a gradient map to background gradient (#39930)
TST: Fix doctests in ``style.py`` (#42783)
DOC: examples for Styler.pipe (#45880)
ENH: allow concat of Styler objects (#46105)
DOC+BUG: `Styler.to_excel` pseudo css `number-format` (#46239)
ENH: Styler builtins: `highlight_between` (#39821)
ENH: `Styler.highlight_quantile` method (#40926)
ENH: Styler.to_latex(): conditional styling with native latex format (#40422)
DOC: comprehensive example of `Styler.to_latex` features (#45228)
ENH: `Styler.text_gradient`: easy extension alternative to `.background_gradient` (#41098)
