update dark_white color to be more white

turns out the default text of the terminal is dark_white, not bright_white, so the text shouldn't be too gray.

Author: waf

dist/ColorTool.zip

@@ -6,12 +6,12 @@ DARK_CYAN = 98,114,164
 DARK_RED = 255,85,85
 DARK_MAGENTA = 255,121,198
 DARK_YELLOW = 255,184,108
-DARK_WHITE = 187,187,187
+DARK_WHITE = 248,248,242
 BRIGHT_BLACK = 85,85,85
 BRIGHT_BLUE = 189,147,249
 BRIGHT_GREEN = 80,250,123
 BRIGHT_CYAN = 139,233,253
 BRIGHT_RED = 255,85,85
 BRIGHT_MAGENTA = 255,121,198
 BRIGHT_YELLOW = 241,250,140
-BRIGHT_WHITE = 248,248,242
+BRIGHT_WHITE = 255,255,255