What's Changed
* Enable multi label input by nfahlgren in https://github.com/danforthcenter/plantcv/pull/1361
* 1363 floodfill function by maliagehan in https://github.com/danforthcenter/plantcv/pull/1364
* Documentation minor bug fixes by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1372
* Update spectral wavelengths for CropReporter datasets by nfahlgren in https://github.com/danforthcenter/plantcv/pull/1374
* Update README.md with Deepsource badge by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1386
* add new function called detect_color_card by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1362
* added flexibility to handle rotation in color cards, consistent chip labeling regardless of orientation, and reduced number of input parameters. Pre-existing `pcv.transform.find_color_card` still exists but will be deprecated in the future.
* Bugfix/data wrangling update: Roi coord dtype cast by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1376
* too many leading '' for block comment by dhiraj-ms in https://github.com/danforthcenter/plantcv/pull/1402
* Removed whitespace surrounding docstring text by zeeuqsze in https://github.com/danforthcenter/plantcv/pull/1392
* Whitespace after "," by dhiraj-ms in https://github.com/danforthcenter/plantcv/pull/1399
* PTC-W0019 - Consider using literal syntax by zeeuqsze in https://github.com/danforthcenter/plantcv/pull/1408
* changing doc string conventions for deepsource best practices by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1391
* FLK-D200 by kmurphy61 in https://github.com/danforthcenter/plantcv/pull/1393
* grouping imports per deepsource by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1396
* changing max linewidth in file by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1398
* changes for deepsource expecting 2 blank lines by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1401
* Deleted variable mask=mask by zeeuqsze in https://github.com/danforthcenter/plantcv/pull/1404
* removing redundant object specification by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1403
* Py w0069 by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1406
* docs: add mtwatso2-eng as a contributor for code by allcontributors in https://github.com/danforthcenter/plantcv/pull/1409
* changed comparison order per deepsource standards by joshqsumner in https://github.com/danforthcenter/plantcv/pull/1394
* added line after docstring by AFis-245 in https://github.com/danforthcenter/plantcv/pull/1397
* docs: add AFis-245 as a contributor for code by allcontributors in https://github.com/danforthcenter/plantcv/pull/1410
* Replaced obs with _ by zeeuqsze in https://github.com/danforthcenter/plantcv/pull/1405
* Removing unused libraries by dhiraj-ms in https://github.com/danforthcenter/plantcv/pull/1407
* Update colorspaces.py add CMYK by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1390
* PYL-W0612 deepsource replace unused vars by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1395
* Remove old utility scripts by nfahlgren in https://github.com/danforthcenter/plantcv/pull/1411
* Add metadata method by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1375
* Updated color correction tutorial by HaleySchuhl in https://github.com/danforthcenter/plantcv/pull/1415
New Contributors
* AFis-245 made their first contribution in https://github.com/danforthcenter/plantcv/pull/1397
**Full Changelog**: https://github.com/danforthcenter/plantcv/compare/v4.0.1...v4.2