Update future_changes

Author: MKoroteev-HORIS

future_changes.md

@@ -14,7 +14,23 @@ GeoTools [v 33.2](https://github.com/geotools/geotools/releases/tag/33.2)
     - New `axisTextSpacing`, `axisTextSpacingX`, and `axisTextSpacingY` parameters in `theme()` to control spacing between axis ticks and labels.
     - See new [plot layout diagram](https://nbviewer.org/github/JetBrains/lets-plot/blob/master/docs/f-25b/plot_layout_scheme.ipynb) notebook showing various layout options and their effects on plot appearance.
 
+- More variants to specify a color by name:
+
+    - all HTML/CSS colors;
+    - various naming styles, e.g., `dark-gray`, `darkgrey`, `dark_grey`, `DARKGRAY`, etc.;
+    - grayscale colors from `gray0` (black) to `gray100` (white);
+
+  See [the complete list of named colors](https://lets-plot.org/python/pages/named_colors.html).
+
 
 ### Changed
 
+- Plot layout: reduced margins and spacing for title, caption, axes, and legend.
+- Updated RGB values for `lightgray` and `green`. To restore the previous colors, use `gray75` and `lime`, respectively.
+
+
 ### Fixed
+
+- Multiline legend labels were not vertically centered with their keys [[#1331](https://github.com/JetBrains/lets-plot/issues/1331)].
+- Poor alignment in legend between columns [[#1332](https://github.com/JetBrains/lets-plot/issues/1332)].
+