-static const char col_gray1[] = "#222222";
-static const char col_gray2[] = "#444444";
-static const char col_gray3[] = "#bbbbbb";
-static const char col_gray4[] = "#eeeeee";
-static const char col_cyan[] = "#005577";
+static const char white[] = "#ffffff";
+static const char black[] = "#000000";
+static const char mgray[] = "#bbbbbb";