diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,7 @@ All notable changes to the gtk-fortran project are documented in this file. The
     * `example/colormaps_list.f90` is creating the `colormaps_list/COLORMAPS_LIST_*.md` files using the `Colormaps_info` class.
         * A `colormaps_list/ForColormap.pdf` manual listing all the available colormaps.
         * A link toward the page *ForColormap Collection Categories* was added in the `README.md` to help users choose a colormap.
+    * A `gallery/` directory with screenshots of simulations using ForColormap.
     * A `README.md` file in each subdirectory describing the files inside.
     * A `logo` directory with SVG files by @alozada.
 
diff --git a/gallery/README.md b/gallery/README.md
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@@ -0,0 +1,6 @@
+# Gallery
+
+If you use ForColormap in your simulations, you can sent us screenshots with details to put in this gallery:
+
+* `black_body-Waveguide-BPM2D-TM_mode.png`: a simulation of a 4-µm wide InGaAsP/InP waveguide with bends, using a 2D-Finite Difference Beam Propagation Method (at 1.55-µm wavelength). It is a top view (700x40 µm) with light propagating from left to right, visualized with the "black_body" colormap. Author: Vincent Magnin (IEMN - UMR CNRS 8520).
+* `lipari-MMI-optical-splitter-BPM3D-TE_mode.png`: a simulation of a 1x2 Multi Mode Interferometer (MMI) splitter, with 800-nm wide Si3N4/SiO2 nanoguides on a GaAs substrate, using a 3D-Finite Difference Beam Propagation Method (at 1.55-µm wavelength). Light is injected by an optical fiber (diffraction is visible at the input). It is a top view (336x20 µm) with light propagating from left to right, visualized with the "lipari" colormap. Author: Vincent Magnin (IEMN - UMR CNRS 8520).
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