[gimp-web/testing] Add first draft of 2.10.4 news

[Alexandre Prokoudine <aprokoudine src gnome org>]

commit a66e1c71b12b125969f69570f3a68d1c13dcee4b
Author: Alexandre Prokoudine <alexandre prokoudine gmail com>
Date:   Tue Jun 26 11:09:45 2018 +0000

    Add first draft of 2.10.4 news

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+Title: GIMP 2.10.4 Released
+Date: 2018-06-30
+Category: News
+Authors: Alexandre Prokoudine
+Slug: gimp-2-10-4-released
+Summary: The latest update of the stable series delivers bugfixes, simple horizon
+straightening, async fonts loading, fonts tagging, and more new features.
+Status: draft
+
+## Horizon Straightening
+
+A common use case for the *Measure* tool is getting GIMP to calculate the angle
+of rotation, when horizon is uneven on a photo. GIMP now removes the extra step
+of performing rotation manually: after measuring the angle, just click the
+newly added **Straighten** button in the tool's settings dialog.
+
+## Asynchronous Fonts Loading
+
+Loading all available fonts on start-up can take quite a while, because as soon
+as you add new fonts or remove existing ones, fontconfig (a 3rd party utility
+GIMP uses) has to rebuild the fonts cache. Windows and macOS users suffered the
+most from it.
+
+Thanks to Ell, GIMP now performs the loading of fonts in a parallel process,
+which dramatically improves startup time. The caveat is that in case you need to
+immediately use the *Text* tool, you might have to wait till all fonts complete
+loading. GIMP will notify you of that.
+
+FIXME: UPLOAD ELL'S VIDEO
+
+## Fonts Tagging
+
+Michael Natterer introduced some internal changes to make fonts taggable.
+The user interface is the same as for brushes, patterns, and gradients.
+
+FIXME: SCREENSHOT MAYBE?
+
+GIMP doesn't yet automatically generate any tags from fonts metadata, but this
+is something we keep on our radar. Ideas and, better yet, patches are welcome!
+
+## Dashboard Updates
+
+Ell added several new features to the *Dashboard* dockable dialog that helps
+debugging GIMP and GEGL or, for end-users, finetune the use of cache and swap.
+
+New *Memory* group of widgets shows currently used memory size, the available
+physical memory size, and the total physical memory size. It can also show the
+tile-cache size, for comparison against the other memory stats.
+
+FIXME: SCREENSHOT
+
+Note that the upper-bound of the meter is the physical memory size, so the
+memory usage may be over 100% when GIMP uses the swap.
+
+The *Swap* group now features "read" and "written" fields which report the total
+amount of data read-from/written-to the tile swap, respectively. Additionally,
+the swap busy indicator has been improved, so that it's active whenever data has
+been read-from/written-to the swap during the last sampling interval, rather
+than at the point of sampling.
+
+## PSD Loader Improvements
+
+While we cannot yet support PSD features such as adjustment layers, there is one
+thing we can do for users who just need a file to render correctly in GIMP.
+Thanks to Ell, GIMP now can load a "merged", pre-composited version of the
+image, that becomes available when a PSD file was saved with "Maximize
+Compatibility" option enabled in Photoshop.
+
+FIXME: SCREENSHOT
+
+This option is currently exposed as an additional file type ("Photoshop image
+(merged)"), which has to be explicitly selected from the filetype list when
+opening the image. GIMP then will render the file correctly, but drop certain
+additional data from the file, such as channels, paths, and guides, while
+retaining metadata.
+
+## Notable Bugfixes
+
+FIXME: MENTION OVERALL AMOUNT OF BUGFIXES SINCE 2.10.2
+
+The Smudge tool now paints correctly on images with a color profile other than
+the GIMP's built-in one.
+
+## Builds for macOS Make a Comeback
+
+## GEGL and babl
+
+## Ongoing Development
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