posit-dev/great-tables v0.21.0

v0.21.0: add `cols_merge()`, `cols_label_with()`, `opt_css()`

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Deprecations

• The opt_all_caps() method now uses loc.column_labels, loc.stub, and loc.row_groups as arguments to locations=; using strings to represent the locations still works but triggers a deprecation warning (#436)

Features

• Added the cols_merge() method for combining cell contents across two or more columns by @rich-iannone in #780
• Added the cols_label_with() method for function-based column relabeling by @machow in #816
• Added the fmt_engineering() method by @rich-iannone in #786
• The new opt_css() method lets you define arbitrary CSS rules for an HTML table by @rich-iannone in #775
• Added the ability to define container padding in tab_options() by @thriller08 in #802

Fixes

• Refactored internal auto-align code for compatibility with Pandas 3.0.0 by @machow in #810
• Added int to the RowSelectExpr definition by @tylerriccio33 in #800
• Updated the Polars selector type annotation to use Selector by @schmidma in #770
• Annotated the pipe method's first argument type as GT by @FBruzzesi in #757
• We now correctly handle the interactive_data_values= properly in Nanoplots by @lorenzo-w in #792
• Group labels are now modified when render_formats() is called by @juleswg23 in #769
• The opt_all_caps() method has been refactored by @jrycw in #436

Docs

• Docs for the val_fmt_engineering() were added to the project website docs by @jrycw in #808
• Corrected the fns= parameter docs in the fmt() method by @rich-iannone in #818
• Improved the docs for the from_column() function by @jrycw in #766
• Added a gt-extras example to the project website's Examples page by @juleswg23 in #759
• Added an example demonstrating usage of the define_units() function by @jrycw in #446

Chores

• Updated the copyright end year to 2026 by @rich-iannone in #804
• Several typos were fixed by @kianmeng in #798
• Added Plausible analytics to the project website by @rich-iannone in #806
• Added several tests for the opt_all_caps() method by @rich-iannone in #812
• Fixed the checkout version tag by @juleswg23 in #768

New Contributors

• @kianmeng made their first contribution in #798
• @thriller08 made their first contribution in #802
• @schmidma made their first contribution in #770
• @lorenzo-w made their first contribution in #792

Full Changelog: v0.20.0...v0.21.0