diff --git a/rtdata/languages/default b/rtdata/languages/default
index 936add694..694666055 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -2311,7 +2311,7 @@ TP_LOCALLAB_BLMETHOD_TOOLTIP;Normal - direct blur and noise with all settings.\n
 TP_LOCALLAB_BLNORM;Normal
 TP_LOCALLAB_BLSYM;Symmetric
 TP_LOCALLAB_BLWH;All changes forced in Black and White
-TP_LOCALLAB_BLWH_TOOLTIP;Force color change composante "a" and "b" to zero. 
+TP_LOCALLAB_BLWH_TOOLTIP;Force color change composante "a" and "b" to zero.\nUsefull when the user chooses black and white processes, or film. 
 TP_LOCALLAB_SPOTNAME;New Spot
 TP_LOCALLAB_BLUFR;Smooth - Blur - Grain - Denoise
 TP_LOCALLAB_BLUMETHOD_TOOLTIP;To blur the background and isolate the foreground:\n*Blur the background by a RT-spot fully covering the image (high values for scope and transition) - normal or inverse.\n*Isolate the foreground by one or more excluding RT-spot with the tools you want (increse scope), you can use a mask to enhance and amplify the effects.\n\nThis module can be used in additional noise reduction,including "median" and "Guided filter" 
@@ -2437,7 +2437,7 @@ TP_LOCALLAB_FATFRAME_TOOLTIP;PDE Fattal - use Fattal Tone mapping algorithm.\nAn
 TP_LOCALLAB_FATLEVEL;Sigma
 TP_LOCALLAB_FATRES;Amount Residual Image
 TP_LOCALLAB_FATSHFRA;Dynamic Range Compression Mask ƒ
-TP_LOCALLAB_FEATH_TOOLTIP;Gradient width in percent of the Spot diagonal\n..
+TP_LOCALLAB_FEATH_TOOLTIP;Gradient width in percent of the Spot diagonal\n.Used by all Graduated filter in all tools.
 TP_LOCALLAB_FEATVALUE;Feather gradient
 TP_LOCALLAB_FFTCOL_MASK;FFTW ƒ
 TP_LOCALLAB_FFTW;ƒ - Use Fast Fourier Transform