v0.2.15

[jiajic]

bug fixes

• fix color gradient error when GiottoVisuals is not attached (loaded as dependency or via ::): giotto.color_cd_pal and giotto.color_cs_pal options now have inline fallback defaults in set_default_color_continuous()
• aes_string2() fixed handling for column names that parse as numeric literals (e.g. "1", "2") that caused plotting to fail

changes

• auto_image_resample() rewritten to use terra::window() instead of the two-method crop/oversample approach, simplifying the implementation and avoiding materialization of large crops to disk. giottoAffineImage is now also supported. Removed params: flex_resample, max_crop, max_resample_scale and their corresponding global options giotto.plot_img_max_crop and giotto.plot_img_max_resample_scale.
• feature value collection in spatFeatPlot2D_single(), dimFeatPlot2D(), spatFeatPlot3D(), dimFeatPlot3D(), spatDimFeatPlot3D(), and violinPlot() now uses spatValues(), replacing manual expression matrix extraction and transposition
• minimum GiottoClass version bumped to >= 0.5.1