diff --git a/rtdata/languages/English (US) b/rtdata/languages/English (US)
index d8c497f16..1bd319e6f 100644
--- a/rtdata/languages/English (US)
+++ b/rtdata/languages/English (US)
@@ -937,7 +937,7 @@
!MAIN_TOOLTIP_BACKCOLOR0;Background color of the preview: theme-based\nShortcut: 9
!MAIN_TOOLTIP_BACKCOLOR1;Background color of the preview: black\nShortcut: 9
!MAIN_TOOLTIP_BACKCOLOR2;Background color of the preview: white\nShortcut: 9
-!MAIN_TOOLTIP_BACKCOLOR3;Background color of the preview: middle grey\nShortcut: 9
+!MAIN_TOOLTIP_BACKCOLOR3;Background color of the preview: middle gray\nShortcut: 9
!MAIN_TOOLTIP_BEFOREAFTERLOCK;Lock / Unlock the Before view\n\nLock: keep the Before view unchanged.\nUseful to evaluate the cumulative effect of multiple tools.\nAdditionally, comparisons can be made to any state in the History.\n\nUnlock: the Before view will follow the After view one step behind, showing the image before the effect of the currently used tool.
!MAIN_TOOLTIP_HIDEHP;Show/Hide the left panel (including the history).\nShortcut: l
!MAIN_TOOLTIP_INDCLIPPEDH;Clipped highlight indication.\nShortcut: >
@@ -2097,7 +2097,7 @@
!TP_WAVELET_APPLYTO;Apply To
!TP_WAVELET_AVOID;Avoid color shift
!TP_WAVELET_B0;Black
-!TP_WAVELET_B1;Grey
+!TP_WAVELET_B1;Gray
!TP_WAVELET_B2;Residual
!TP_WAVELET_BACKGROUND;Background
!TP_WAVELET_BACUR;Curve