diff --git a/app/operations/layer-modes/gimpoperationlayermode.c b/app/operations/layer-modes/gimpoperationlayermode.c
index 2d547de861..40567bba55 100644
--- a/app/operations/layer-modes/gimpoperationlayermode.c
+++ b/app/operations/layer-modes/gimpoperationlayermode.c
@@ -1948,3 +1948,562 @@ static inline GimpBlendFunc gimp_layer_mode_get_blend_fun (GimpLayerMode mode)
   }
   return (void*)dummy_fun;
 }
+
+struct _GimpOperationLayerModeInfo
+{
+  GimpLayerMode          layer_mode;
+  gchar                 *mode_name;
+  gchar                 *op_name;
+  GimpLayerModeFlags     flags;
+  GimpLayerCompositeMode composite_mode;
+  GimpLayerColorSpace    composite_space;
+  GimpLayerColorSpace    blend_space;
+};
+
+static GimpLayerModeInfo gimp_layer_mode_infos[]=
+{
+  { GIMP_LAYER_MODE_NORMAL,
+    "gimp:normal",
+    0,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DISSOLVE,
+    "gimp:dissolve",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_OVER,
+  },
+  { GIMP_LAYER_MODE_BEHIND,
+    "gimp:behind",
+    0,
+    GIMP_LAYER_COMPOSITE_SRC_OVER
+  },
+  { GIMP_LAYER_MODE_MULTIPLY_LEGACY,
+    "gimp:multiply-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY
+  },
+  { GIMP_LAYER_MODE_SCREEN_LEGACY,
+    "gimp:screen-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_OVERLAY_LEGACY,
+    "gimp:overlay-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DIFFERENCE_LEGACY,
+    "gimp:difference-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_ADDITION_LEGACY,
+    "gimp:addition-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_SUBTRACT_LEGACY,
+    "gimp:subtract-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY,
+    "gimp:darken-only-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY,
+    "gimp:lighten-only-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HSV_HUE_LEGACY,
+    "gimp:hsv-hue-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HSV_SATURATION_LEGACY,
+    "gimp:hsv-saturation-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HSV_COLOR_LEGACY,
+    "gimp:hsv-color-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HSV_VALUE_LEGACY,
+    "gimp:hsv-value-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DIVIDE_LEGACY,
+    "gimp:divide-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DODGE_LEGACY,
+    "gimp:dodge-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_BURN_LEGACY,
+    "gimp:burn-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HARDLIGHT_LEGACY,
+    "gimp:hardlight-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_SOFTLIGHT_LEGACY,
+    "gimp:softlight-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY,
+    "gimp:grain-extract-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY,
+    "gimp:grain-merge-legacy",
+    GIMP_LAYER_MODE_FLAG_LEGACY,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_COLOR_ERASE,
+    "gimp:color-erase",
+    0,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_OVERLAY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_LCH_HUE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_LAB
+  },
+  { GIMP_LAYER_MODE_LCH_CHROMA,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_LAB
+  },
+  { GIMP_LAYER_MODE_LCH_COLOR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_LAB
+  },
+  { GIMP_LAYER_MODE_LCH_LIGHTNESS,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_LAB
+  },
+  { GIMP_LAYER_MODE_NORMAL_LINEAR,
+    "gimp:normal",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_OVER,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_BEHIND_LINEAR,
+    "gimp:behind",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_OVER,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_MULTIPLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_MULTIPLY_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_SCREEN,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_SCREEN_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DIFFERENCE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_DIFFERENCE_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_ADDITION,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_ADDITION_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_SUBTRACT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_SUBTRACT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DARKEN_ONLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_LIGHTEN_ONLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HSV_HUE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_HSV_SATURATION,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_HSV_COLOR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_HSV_VALUE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_DIVIDE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_DIVIDE_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_DODGE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_DODGE_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_BURN,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_BURN_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_HARDLIGHT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_HARDLIGHT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_SOFTLIGHT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_SOFTLIGHT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_GRAIN_EXTRACT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_GRAIN_EXTRACT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_GRAIN_MERGE,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_GRAIN_MERGE_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_VIVID_LIGHT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_VIVID_LIGHT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_PIN_LIGHT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_PIN_LIGHT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_LINEAR_LIGHT,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_LINEAR_LIGHT_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_EXCLUSION,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_EXCLUSION_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_LINEAR_BURN,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_LINEAR_BURN_LINEAR,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_LUMA_DARKEN_ONLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_LUMA_LIGHTEN_ONLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
+  },
+  { GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY,
+    "gimp:layer-mode",
+    GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_ERASE,
+    "gimp:erase",
+    0,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_REPLACE,
+    "gimp:replace",
+    0,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+  { GIMP_LAYER_MODE_ANTI_ERASE,
+    "gimp:anti-erase",
+    0,
+    GIMP_LAYER_COMPOSITE_SRC_ATOP,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR,
+    GIMP_LAYER_COLOR_SPACE_RGB_LINEAR
+  },
+};
+
+const GimpLayerModeInfo *gimp_layer_mode_info (GimpLayerMode mode)
+{
+  int i;
+  for (i = 0; i < sizeof (gimp_layer_mode_infos) / sizeof (gimp_layer_mode_infos[0]); i++)
+    {
+      if (gimp_layer_mode_infos[i].layer_mode == mode)
+        return &gimp_layer_mode_infos[i];
+    }
+  return NULL;
+}
+
diff --git a/app/operations/layer-modes/gimpoperationlayermode.h b/app/operations/layer-modes/gimpoperationlayermode.h
index 9d69052e68..392aa30d2f 100644
--- a/app/operations/layer-modes/gimpoperationlayermode.h
+++ b/app/operations/layer-modes/gimpoperationlayermode.h
@@ -48,6 +48,27 @@ struct _GimpOperationLayerModeClass
   GimpLayerModeAffectMask (* get_affect_mask) (GimpOperationLayerMode *layer_mode);
 };
 
+typedef struct _GimpLayerModeInfo GimpLayerModeInfo;
+
+typedef enum GimpLayerModeFlags {
+  GIMP_LAYER_MODE_FLAG_LEGACY = (1<<0),
+  GIMP_LAYER_MODE_FLAG_WANTS_LINEAR_DATA = (1<<1)
+} GimpLayerModeFlags;
+
+
+struct _GimpLayerModeInfo
+{
+  GimpLayerMode          layer_mode;
+  gchar                 *op_name;
+  GimpLayerModeFlags     flags;
+  GimpLayerCompositeMode composite_mode;
+  GimpLayerColorSpace    composite_space;
+  GimpLayerColorSpace    blend_space;
+};
+
+const GimpLayerModeInfo *gimp_layer_mode_info (GimpLayerMode mode);
+
+
 struct _GimpOperationLayerMode
 {
   GeglOperationPointComposer3  parent_instance;