diff --git a/nanovna.h b/nanovna.h
index 5a25d16..09ddf68 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -522,7 +522,7 @@ extern volatile uint8_t redraw_request;
 #define DEFAULT_LOW_BAT_COLOR       RGB565(255,  0,  0)
 #define DEFAULT_SPEC_INPUT_COLOR    RGB565(128,255,128);
 #define BRIGHT_COLOR_BLUE  RGB565(0,0,255)
-#define BRIGHT_COLOR_RED  RGB565(255,0,0)
+#define BRIGHT_COLOR_RED  RGB565(255,128,128)
 #define BRIGHT_COLOR_GREEN  RGB565(0,255,0)
 
 extern uint16_t foreground_color;
diff --git a/sa_core.c b/sa_core.c
index 103a45c..18f4fca 100644
--- a/sa_core.c
+++ b/sa_core.c
@@ -2103,7 +2103,7 @@ void draw_cal_status(void)
   if (t < setting.sweep_time)
     t = setting.sweep_time;
   setting.actual_sweep_time = t;
-  plot_printf(buf, BLEN, "%.3Fs", t/1000.0);
+  plot_printf(buf, BLEN, "%.3FS", t/1000.0);
   ili9341_drawstring(buf, x, y);
 
    // Cal output