NEWS: add screenshot and color picker improvements.

Also move the Color Picker section from tools to core. This is not about
the Color Picker tool (which only picks inside the canvas and doesn't
care about Wayland or not) but about the generic widget which can also
pick colors out of canvas (and even out of GIMP windows).

NEWS

@@ -28,6 +28,10 @@ Core:
   - Paste in Place, available for regular clipboard and named buffers,
     allows pasting contents of either the clipboard a named buffer at the
     exact coordinates it was copied from.
+  - Color Picker should now work on KDE/Wayland.
+  - Color Picker now reads values under cursor in local windows making
+    it work at least inside GIMP Windows on Wayland platforms with no
+    color-picking capabilities (for instance GNOME/Wayland) yet.
 
 Configurability:
 
@@ -56,8 +60,6 @@ Tools:
     which allows changing user-writable gradients directly rather than
     creating copies of them. Moreover, custom gradient is now saved
     and restored across sessions.
-  - Color Picker now reads values under cursor in local windows under
-    Wayland.
   - All transform tools: it makes no difference now whether a modifier is
     pressed before of after mouse button press/release.
 
@@ -81,6 +83,12 @@ Plug-ins:
 
   - Password-protected PDF files can now be imported.
   - Fix finding raw loaders on Windows/macOS.
+  - Screenshot for KDE/Wayland has been implemented (full-screen and
+    window screenshots only; rectangular area screenshots need
+    implementation on KDE side).
+  - Screenshot can now add a delay between window pick/rectangular
+    area selection and the actual shot, but only in platforms supporting
+    the feature.
 
 File formats: