Please see https://stackoverflow.com/questions/31816095/why-should-i-not-include-bits-stdc-h, https://stackoverflow.com/questions/1452721/why-is-using-namespace-std-considered-bad-practice
– MattDMoJul 25 '21 at 21:06
In response to your question, there is no way to change the color of those items with the C++ syntax that ships with Sublime Text.
– MattDMoJul 25 '21 at 21:14