UI: Fix hard to read text for drag disabled hints

In 499dbb626acb, the background color of drag tooltips were changed so
text becomes more readable. But multiple people were touching the same
code, so the disabled hint tooltips didn't get the same tweak. They
would benefit from them even more, since the red text is even harder to
read on the transparent background than the regular, white text.

1 files changed, 4 insertions, 2 deletions

diff --git a/source/blender/windowmanager/intern/wm_dragdrop.c b/source/blender/windowmanager/intern/wm_dragdrop.c
index 85378ffd7c7..64aa55c058c 100644
--- a/source/blender/windowmanager/intern/wm_dragdrop.c
+++ b/source/blender/windowmanager/intern/wm_dragdrop.c
@@ -725,10 +725,12 @@ static void wm_drop_operator_draw(const char *name, int x, int y)
 static void wm_drop_redalert_draw(const char *redalert_str, int x, int y)
 {
   const uiFontStyle *fstyle = UI_FSTYLE_WIDGET;
-  const float col_bg[4] = {0.0f, 0.0f, 0.0f, 0.2f};
-  float col_fg[4];
+  const bTheme *btheme = UI_GetTheme();
+  const uiWidgetColors *wcol = &btheme->tui.wcol_tooltip;
 
+  float col_fg[4], col_bg[4];
   UI_GetThemeColor4fv(TH_REDALERT, col_fg);
+  rgba_uchar_to_float(col_bg, wcol->inner);
 
   UI_fontstyle_draw_simple_backdrop(fstyle, x, y, redalert_str, col_fg, col_bg);
 }