Solarized colors contrast enhanced

* c12 (COL_DEF) hasn't been defined in solarized color palette this
  resulted in a low contrast to the background color if solarized_light
  was selected.

* c38 (COL_RED) hasn't been defined in solarized color palette, too.
  S_magenta seems to be the closest match.

* Made the change to solarized (dark) to keep symmetry.

data/themes/solarized.edc

@@ -29,6 +29,7 @@ color_classes {
    color_class { name: "c7";  color: S_cyan; }
    color_class { name: "c8";  color: S_base2; }
    color_class { name: "c11"; color: S_base0; }
+   color_class { name: "c12"; color: S_base00; }
 
    color_class { name: "c13"; color: S_base03; }
    color_class { name: "c14"; color: S_orange; }
@@ -48,6 +49,8 @@ color_classes {
    color_class { name: "c31"; color: S_base1; }
    color_class { name: "c32"; color: S_base3; }
 
+   color_class { name: "c38"; color: S_magenta; }
+
    color_class { name: "C0";  color: S_base02; } // COL_BLACK
    color_class { name: "C1";  color: S_red; } // COL_RED
    color_class { name: "C2";  color: S_green; } // COL_GREEN

data/themes/solarized_light.edc

@@ -29,6 +29,7 @@ color_classes {
    color_class { name: "c7";  color: S_cyan; }
    color_class { name: "c8";  color: S_base2; }
    color_class { name: "c11"; color: S_base0; }
+   color_class { name: "c12"; color: S_base00; }
 
    color_class { name: "c13"; color: S_base03; }
    color_class { name: "c14"; color: S_orange; }
@@ -48,6 +49,8 @@ color_classes {
    color_class { name: "c31"; color: S_base1; }
    color_class { name: "c32"; color: S_base3; }
 
+   color_class { name: "c38"; color: S_magenta; }
+
    color_class { name: "C0";  color: S_base02; } // COL_BLACK
    color_class { name: "C1";  color: S_red; } // COL_RED
    color_class { name: "C2";  color: S_green; } // COL_GREEN