The General group of the Editor’s options contains one setting:

Keep highlighting when printing - If this option is enabled, the Editor panel follows active color settings when printing source files. For instance, if you use white letters on a black background, the Editor will print white letters on a black background. If the option is disabled, the Editor only uses font style highlighting for printing (bold, italic and so on) and does not use color highlighting (that is, the font color is always black and the background is always white).

Editor - General Settings