diff --git a/rtdata/languages/default b/rtdata/languages/default
index ba47a6bb1..f54ce81ca 100644
--- a/rtdata/languages/default
+++ b/rtdata/languages/default
@@ -2089,9 +2089,9 @@ TP_LOCALLAB_LIGHTRETI;Lightness
 TP_LOCALLAB_THRESRETI;Threshold
 TP_LOCALLAB_DENOIS;Denoise
 TP_LOCALLAB_DEHAZ;Dehaze
-TP_LOCALLAB_EXPMETHOD_TOOLTIP;Standard : use an algorithm similar as main Exposure but in L*a*b* and taking account of deltaE.\n\nLaplacian & PDE : use another algorithm also with deltaE and with Poisson equation to solve Laplacian in Fourier space.\nPDE Ipol and PDE Fattal can be combined.\nFFTW Fourier Transform is optimized in size to reduce processing time.\nPDE reduce artifacts and noise.
+TP_LOCALLAB_EXPMETHOD_TOOLTIP;Standard : use an algorithm similar as main Exposure but in L*a*b* and taking account of deltaE.\n\nLaplacian & PDE : use another algorithm also with deltaE and with Poisson equation to solve Laplacian in Fourier space.\nPDE Ipol, PDE Fattal and Standard can be combined.\nFFTW Fourier Transform is optimized in size to reduce processing time.\nPDE reduce artifacts and noise.
 TP_LOCALLAB_PDEFRAME_TOOLTIP;PDE Ipol - personal algorithm adapted from Ipol to Rawtherapee: lead to very different results and needs differents settings that Standard (negative black, gamma < 1,...)\nMay be usefull for low exposure.\n
-TP_LOCALLAB_FATFRAME_TOOLTIP;PDE Fattal - use Fattal Tone mapping algorithm.\nAnchor allows selection according to the images over or under exposed.
+TP_LOCALLAB_FATFRAME_TOOLTIP;PDE Fattal - use Fattal Tone mapping algorithm.\nAnchor allows selection according to the images over or under exposed.\nUseful to increase Luminance for a Second spot near the current and using mask
 TP_LOCALLAB_FFTW;Use Fast Fourier Transform
 TP_LOCALLAB_GRIDONE;Color Toning
 TP_LOCALLAB_GRIDTWO;Direct
@@ -2141,8 +2141,8 @@ TP_LOCALLAB_NOISECHROCOARSE;Chroma coarse (Wav)
 TP_LOCALLAB_NOISECHRODETAIL;Chroma detail (DCT)
 TP_LOCALLAB_NOISECHROC_TOOLTIP;If superior to zero, high quality algorithm is enabled.\nCoarse is for slider >=2
 TP_LOCALLAB_PREVIEWSEL;Preview selection deltaE
-TP_LOCALLAB_PDEFRA;PDE Ipol
-TP_LOCALLAB_FATFRA;PDE Fattal
+TP_LOCALLAB_PDEFRA;PDE Ipol - Contrast attenuator
+TP_LOCALLAB_FATFRA;PDE Fattal - Dynamic Range Compression
 TP_LOCALLAB_FATAMOUNT;Amount
 TP_LOCALLAB_FATDETAIL;Detail
 TP_LOCALLAB_FATANCHOR;Anchor