diff --git a/lib/jkqtplotter/resources/styles/default.ini b/lib/jkqtplotter/resources/styles/default.ini
index ff39840c20..1a5cb626bf 100644
--- a/lib/jkqtplotter/resources/styles/default.ini
+++ b/lib/jkqtplotter/resources/styles/default.ini
@@ -46,7 +46,7 @@ debug_region_linewidth=1
 debug_textbox_linewidth=false
 antialiase_system=true
 antialiase_text=true
-widget_background_color=#f0f0f0
+widget_background_color=grey94
 widget_background_color_for_export=white
 plot_background_color=white
 plot_border_left=5
@@ -122,11 +122,11 @@ axis_x\zero_line\line_width=1
 axis_x\zero_line\color=black
 axis_x\zero_line\style=solid
 axis_x\grid\enabled=true
-axis_x\grid\color=#c8c8c8
+axis_x\grid\color=grey78
 axis_x\grid\width=1
 axis_x\grid\style=dot
 axis_x\minor_grid\enabled=false
-axis_x\minor_grid\color=#c8c8c8
+axis_x\minor_grid\color=grey78
 axis_x\minor_grid\width=0.75
 axis_x\minor_grid\style=dot
 axis_y\color=black
@@ -168,11 +168,11 @@ axis_y\zero_line\line_width=1
 axis_y\zero_line\color=black
 axis_y\zero_line\style=solid
 axis_y\grid\enabled=true
-axis_y\grid\color=#c8c8c8
+axis_y\grid\color=grey78
 axis_y\grid\width=1
 axis_y\grid\style=dot
 axis_y\minor_grid\enabled=false
-axis_y\minor_grid\color=#c8c8c8
+axis_y\minor_grid\color=grey78
 axis_y\minor_grid\width=0.75
 axis_y\minor_grid\style=dot
 axis_colorbar_right\color=black
@@ -214,11 +214,11 @@ axis_colorbar_right\zero_line\line_width=1
 axis_colorbar_right\zero_line\color=black
 axis_colorbar_right\zero_line\style=solid
 axis_colorbar_right\grid\enabled=true
-axis_colorbar_right\grid\color=#c8c8c8
+axis_colorbar_right\grid\color=grey78
 axis_colorbar_right\grid\width=1
 axis_colorbar_right\grid\style=dot
 axis_colorbar_right\minor_grid\enabled=false
-axis_colorbar_right\minor_grid\color=#c8c8c8
+axis_colorbar_right\minor_grid\color=grey78
 axis_colorbar_right\minor_grid\width=0.75
 axis_colorbar_right\minor_grid\style=dot
 axis_colorbar_top\color=black
@@ -260,31 +260,22 @@ axis_colorbar_top\zero_line\line_width=1
 axis_colorbar_top\zero_line\color=black
 axis_colorbar_top\zero_line\style=solid
 axis_colorbar_top\grid\enabled=true
-axis_colorbar_top\grid\color=#c8c8c8
+axis_colorbar_top\grid\color=grey78
 axis_colorbar_top\grid\width=1
 axis_colorbar_top\grid\style=dot
 axis_colorbar_top\minor_grid\enabled=false
-axis_colorbar_top\minor_grid\color=#c8c8c8
+axis_colorbar_top\minor_grid\color=grey78
 axis_colorbar_top\minor_grid\width=0.75
 axis_colorbar_top\minor_grid\style=dot
 graphs\antialiase=true
 graphs\palette=Matlab
-graphs\auto_styles\color0=red
-graphs\auto_styles\color1=green
-graphs\auto_styles\color2=blue
-graphs\auto_styles\color3=fuchsia
-graphs\auto_styles\color4=darkorange
-graphs\auto_styles\color5=navy
-graphs\auto_styles\color6=firebrick
-graphs\auto_styles\color7=darkgreen
-graphs\auto_styles\color8=darkmagenta
-graphs\auto_styles\color9=darkgreen
-graphs\auto_styles\color10=darkslateblue
-graphs\auto_styles\color11=maroon
-graphs\auto_styles\color12=indianred
-graphs\auto_styles\color13=darkolivegreen
-graphs\auto_styles\color14=mediumpurple
-graphs\auto_styles\color15=darkcyan
+graphs\auto_styles\color0=#d50000
+graphs\auto_styles\color1=#0039d6
+graphs\auto_styles\color2=#ffdd00
+graphs\auto_styles\color3=#00bb40
+graphs\auto_styles\color4=#a84ce4
+graphs\auto_styles\color5=#fd8600
+graphs\auto_styles\color6=#0b069c
 graphs\auto_styles\line_style0=solid
 graphs\auto_styles\line_style1=dash
 graphs\auto_styles\line_style2=dot