diff --git a/rtdata/languages/default b/rtdata/languages/default
index 40ff2ff88..f6ffc873c 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -398,7 +398,7 @@ HISTORY_MSG_145;Microcontrast - Uniformity
 HISTORY_MSG_146;Edge sharpening
 HISTORY_MSG_147;ES - Luminance only
 HISTORY_MSG_148;Microcontrast
-HISTORY_MSG_149;Microcontrast - 33 matrix
+HISTORY_MSG_149;Microcontrast - 3×3 matrix
 HISTORY_MSG_150;Post-demosaic artifact/noise red.
 HISTORY_MSG_151;Vibrance
 HISTORY_MSG_152;Vib - Pastel tones
@@ -728,14 +728,14 @@ HISTORY_MSG_492;RGB Curves
 HISTORY_MSG_493;L*a*b* Adjustments
 HISTORY_MSG_CLAMPOOG;Clip out-of-gamut colors
 HISTORY_MSG_COLORTONING_LABGRID_VALUE;CT - Color correction
-HISTORY_MSG_COLORTONING_LABREGION_LIST;CT - L*a*b* region list
+HISTORY_MSG_COLORTONING_LABREGION_LIST;CT - List
 HISTORY_MSG_COLORTONING_LABREGION_AB;CT - Color correction
-HISTORY_MSG_COLORTONING_LABREGION_SATURATION;CT - L*a*b* region saturation
-HISTORY_MSG_COLORTONING_LABREGION_LIGHTNESS;CT - L*a*b* region lightness
-HISTORY_MSG_COLORTONING_LABREGION_HUEMASK;CT - L*a*b* region H mask
-HISTORY_MSG_COLORTONING_LABREGION_CHROMATICITYMASK;CT - L*a*b* region C mask
-HISTORY_MSG_COLORTONING_LABREGION_LIGHTNESSMASK;CT - L*a*b* region L mask
-HISTORY_MSG_COLORTONING_LABREGION_SHOWMASK;CT - L*a*b* region show mask
+HISTORY_MSG_COLORTONING_LABREGION_SATURATION;CT - Saturation
+HISTORY_MSG_COLORTONING_LABREGION_LIGHTNESS;CT - Lightness
+HISTORY_MSG_COLORTONING_LABREGION_HUEMASK;CT - H mask
+HISTORY_MSG_COLORTONING_LABREGION_CHROMATICITYMASK;CT - C mask
+HISTORY_MSG_COLORTONING_LABREGION_LIGHTNESSMASK;CT - L mask
+HISTORY_MSG_COLORTONING_LABREGION_SHOWMASK;CT - Show mask
 HISTORY_MSG_DUALDEMOSAIC_CONTRAST;Dual demosaic - Contrast threshold
 HISTORY_MSG_DUALDEMOSAIC_AUTO_CONTRAST;Dual demosaic - Auto threshold
 HISTORY_MSG_HISTMATCHING;Auto-matched tone curve
@@ -816,7 +816,7 @@ IPTCPANEL_CITY;City
 IPTCPANEL_CITYHINT;Enter the name of the city pictured in this image.
 IPTCPANEL_COPYHINT;Copy IPTC settings to clipboard.
 IPTCPANEL_COPYRIGHT;Copyright notice
-IPTCPANEL_COPYRIGHTHINT;Enter a Notice on the current owner of the Copyright for this image, such as 2008 Jane Doe.
+IPTCPANEL_COPYRIGHTHINT;Enter a Notice on the current owner of the Copyright for this image, such as ©2008 Jane Doe.
 IPTCPANEL_COUNTRY;Country
 IPTCPANEL_COUNTRYHINT;Enter the name of the country pictured in this image.
 IPTCPANEL_CREATOR;Creator
@@ -1375,9 +1375,9 @@ TP_COARSETRAF_TOOLTIP_ROTLEFT;Rotate left.\n\nShortcuts:\n<b>[</b> - Multiple Ed
 TP_COARSETRAF_TOOLTIP_ROTRIGHT;Rotate right.\n\nShortcuts:\n<b>]</b> - Multiple Editor Tabs Mode,\n<b>Alt-]</b> - Single Editor Tab Mode.
 TP_COARSETRAF_TOOLTIP_VFLIP;Flip vertically.
 TP_COLORAPP_ADAPTSCENE;Scene absolute luminance
-TP_COLORAPP_ADAPTSCENE_TOOLTIP;Absolute luminance of the scene environment (cd/m).\n1) Calculated from the Exif data:\nShutter speed - ISO speed - F number - camera exposure correction.\n2) Calculated from the raw white point and RT's Exposure Compensation slider.
-TP_COLORAPP_ADAPTVIEWING;Viewing absolute luminance (cd/m)
-TP_COLORAPP_ADAPTVIEWING_TOOLTIP;Absolute luminance of the viewing environment\n(usually 16cd/m).
+TP_COLORAPP_ADAPTSCENE_TOOLTIP;Absolute luminance of the scene environment (cd/m²).\n1) Calculated from the Exif data:\nShutter speed - ISO speed - F number - camera exposure correction.\n2) Calculated from the raw white point and RT's Exposure Compensation slider.
+TP_COLORAPP_ADAPTVIEWING;Viewing absolute luminance (cd/m²)
+TP_COLORAPP_ADAPTVIEWING_TOOLTIP;Absolute luminance of the viewing environment\n(usually 16cd/m²).
 TP_COLORAPP_ADAP_AUTO_TOOLTIP;If the checkbox is checked (recommended) RawTherapee calculates an optimum value from the Exif data.\nTo set the value manually, uncheck the checkbox first.
 TP_COLORAPP_ALGO;Algorithm
 TP_COLORAPP_ALGO_ALL;All
@@ -1414,7 +1414,7 @@ TP_COLORAPP_FREE;Free temp+green + CAT02 + [output]
 TP_COLORAPP_GAMUT;Gamut control (L*a*b*)
 TP_COLORAPP_GAMUT_TOOLTIP;Allow gamut control in L*a*b* mode.
 TP_COLORAPP_HUE;Hue (h)
-TP_COLORAPP_HUE_TOOLTIP;Hue (h) - angle between 0 and 360.
+TP_COLORAPP_HUE_TOOLTIP;Hue (h) - angle between 0° and 360°.
 TP_COLORAPP_LABEL;CIE Color Appearance Model 2002
 TP_COLORAPP_LABEL_CAM02;Image Adjustments
 TP_COLORAPP_LABEL_SCENE;Scene Conditions
@@ -1571,16 +1571,16 @@ TP_DIRPYRDENOISE_MEDIAN_METHOD_RGB;RGB
 TP_DIRPYRDENOISE_MEDIAN_METHOD_TOOLTIP;When using the "Luminance only" and "L*a*b*" methods, median filtering will be performed just after the wavelet step in the noise reduction pipeline.\nWhen using the "RGB" mode, it will be performed at the very end of the noise reduction pipeline.
 TP_DIRPYRDENOISE_MEDIAN_METHOD_WEIGHTED;Weighted L* (little) + a*b* (normal)
 TP_DIRPYRDENOISE_MEDIAN_PASSES;Median iterations
-TP_DIRPYRDENOISE_MEDIAN_PASSES_TOOLTIP;Applying three median filter iterations with a 33 window size often leads to better results than using one median filter iteration with a 77 window size.
+TP_DIRPYRDENOISE_MEDIAN_PASSES_TOOLTIP;Applying three median filter iterations with a 3×3 window size often leads to better results than using one median filter iteration with a 7×7 window size.
 TP_DIRPYRDENOISE_MEDIAN_TYPE;Median type
-TP_DIRPYRDENOISE_MEDIAN_TYPE_TOOLTIP;Apply a median filter of the desired window size. The larger the window's size, the longer it takes.\n\n33 soft: treats 5 pixels in a 33 pixel window.\n33: treats 9 pixels in a 33 pixel window.\n55 soft: treats 13 pixels in a 55 pixel window.\n55: treats 25 pixels in a 55 pixel window.\n77: treats 49 pixels in a 77 pixel window.\n99: treats 81 pixels in a 99 pixel window.\n\nSometimes it is possible to achieve higher quality running several iterations with a smaller window size than one iteration with a larger one.
+TP_DIRPYRDENOISE_MEDIAN_TYPE_TOOLTIP;Apply a median filter of the desired window size. The larger the window's size, the longer it takes.\n\n3×3 soft: treats 5 pixels in a 3×3 pixel window.\n3×3: treats 9 pixels in a 3×3 pixel window.\n5×5 soft: treats 13 pixels in a 5×5 pixel window.\n5×5: treats 25 pixels in a 5×5 pixel window.\n7×7: treats 49 pixels in a 7×7 pixel window.\n9×9: treats 81 pixels in a 9×9 pixel window.\n\nSometimes it is possible to achieve higher quality running several iterations with a smaller window size than one iteration with a larger one.
 TP_DIRPYRDENOISE_SLI;Slider
-TP_DIRPYRDENOISE_TYPE_3X3;33
-TP_DIRPYRDENOISE_TYPE_3X3SOFT;33 soft
-TP_DIRPYRDENOISE_TYPE_5X5;55
-TP_DIRPYRDENOISE_TYPE_5X5SOFT;55 soft
-TP_DIRPYRDENOISE_TYPE_7X7;77
-TP_DIRPYRDENOISE_TYPE_9X9;99
+TP_DIRPYRDENOISE_TYPE_3X3;3×3
+TP_DIRPYRDENOISE_TYPE_3X3SOFT;3×3 soft
+TP_DIRPYRDENOISE_TYPE_5X5;5×5
+TP_DIRPYRDENOISE_TYPE_5X5SOFT;5×5 soft
+TP_DIRPYRDENOISE_TYPE_7X7;7×7
+TP_DIRPYRDENOISE_TYPE_9X9;9×9
 TP_DIRPYREQUALIZER_ALGO;Skin Color Range
 TP_DIRPYREQUALIZER_ALGO_TOOLTIP;Fine: closer to the colors of the skin, minimizing the action on other colors\nLarge: avoid more artifacts.
 TP_DIRPYREQUALIZER_ARTIF;Reduce artifacts
@@ -2026,7 +2026,7 @@ TP_SHARPENING_USM;Unsharp Mask
 TP_SHARPENMICRO_AMOUNT;Quantity
 TP_SHARPENMICRO_CONTRAST;Contrast threshold
 TP_SHARPENMICRO_LABEL;Microcontrast
-TP_SHARPENMICRO_MATRIX;33 matrix instead of 55
+TP_SHARPENMICRO_MATRIX;3×3 matrix instead of 5×5
 TP_SHARPENMICRO_UNIFORMITY;Uniformity
 TP_SOFTLIGHT_LABEL;Soft Light
 TP_SOFTLIGHT_STRENGTH;Strength