[gimp-web] Update GIMP 2.10.24 news.

[Jehan <jehanp src gnome org>]

commit e30327428604189f917822b01de9c0c3af7353cb
Author: Jehan <jehan girinstud io>
Date:   Sun Mar 28 15:22:57 2021 +0200

    Update GIMP 2.10.24 news.
    
    Bump the date to today. Even though the news was released on gimp.org by
    mistake yesterday evening (for an hour or so, it would seem), the actual
    release date is today.
    
    Also add babl and GEGL release news, and put a bit of a flashlight on
    the new negative darkroom operation with the screenshot which was
    release on social networks already.

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 .../2021/2021-03_GIMP-2.10.24_Released/index.md    |  66 +++++++++++++++++++--
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--- a/content/news/2021/2021-03_GIMP-2.10.24_Released/index.md
+++ b/content/news/2021/2021-03_GIMP-2.10.24_Released/index.md
@@ -1,5 +1,5 @@
 Title: GIMP 2.10.24 Released
-Date: 2021-03-27
+Date: 2021-03-28
 Category: News
 Authors: Wilber
 Slug: gimp-2-10-24-released
@@ -31,8 +31,8 @@ Release highlights:
 ## Off-canvas point snapping
 
 Though there are various fixes in core code, this change is probably the
-only one worth mentionning. Ever since GIMP 2.10.14, we are now able to
-see the [out-of-canvas
+most worth mentionning. Ever since GIMP 2.10.14, we are now able to see
+the [out-of-canvas
 area](https://www.gimp.org/news/2019/10/31/gimp-2-10-14-released/#out-of-canvas-viewing-and-editing).
 Consequently, many features can now work outside the canvas, yet not all
 features yet. This change is the continuation of this work, allowing you
@@ -120,12 +120,66 @@ translators to bring GIMP to even more people.
 
 This makes GIMP available to 82 languages other than default English!
 
-The translators are also contributors doing an incredible work. Thanks
-to all of them!
+Translators are also contributors doing an incredible work, even though
+their work doesn't always get the visibility and acknowledgement they
+deserve. Thanks to all of them!
 
 # GEGL and babl
 
-TODO
+As usual, this release is supplemented with the releases of
+[babl](https://gegl.org/babl/) 0.1.86 and [GEGL](https://gegl.org/)
+0.4.30.
+
+## Changes in short
+
+Our pixel encoding and color space conversion engine, babl 0.1.86, now
+supports creating babl space from input-class ICC profiles and improves
+thread safety.
+
+On its side, GEGL 0.4.30 made improvements to its test suite and to
+the following operations: jpg-load, png-load, tiff-load, rgbe-load,
+color-reduction, fattal02 and paint-select. This later operation in
+particular was introduced for the new [Paint Select
+tool](https://www.gimp.org/news/2020/12/25/gimp-2-99-4-released/#new-experimental-paint-select-tool)
+so we will have the opportunity to talk about the improvements on the
+next development release news.
+
+## Negative Darkroom
+
+Additionally to the other improvements, a new very interesting operation
+appears in GEGL: `negative-darkroom`.
+
+This operation is for artists who use hybrid workflow technique of
+analog photography. After scanning a developed negative, this operation
+is used to invert the scan to create a positive image by simulating the
+light behaviour of darkroom enlarger and common photographic papers.
+
+<figure>
+<img src="{attach}gimp-2.10.24-negative-darkroom.jpg" alt="Negative Darkroom in GEGL 0.4.30 / GIMP 2.10.24"/>
+<figcaption>
+<em>Negative Darkroom operation in GEGL 0.4.30 / GIMP 2.10.24</em>
+</figcaption>
+</figure>
+
+As all GEGL operations are automatically detected and made available by
+GIMP, this new operation can be used in GIMP 2.10.24 through the generic
+GEGL tool (menu `Tools > GEGL Operation…` then select "*Negative
+Darkroom (negative-darkroom)*" in the dropdown list).
+
+Creating a custom dedicated dialog for this operation has been raised
+and may happen in an further version of GIMP to even more improve the
+usage and experience.
+
+## babl minimum requirement in GEGL and GIMP
+
+Meanwhile babl minimum requirement in GEGL has been downgraded to 0.1.78
+(same as in GIMP) because newer versions require too recent `meson`
+build tool, which is unfortunately still not available on some
+distributions. In order not to prevent people from benefiting from a
+newer version of GEGL and GIMP, we refrain on purpose to bump the
+minimum requirement for a bit even though we highly encourage every
+packager to use the last version of babl when possible. Many fixes and
+improvements were also made available in recent versions.
 
 # What's next