I don't know whether there is any style presets other than the default ones you can use, but you can definitely change the various fonts and there sizes, colors etc.

• Open netbeans and Go to Tools → Options from menu




• Select the Fonts and Colors tab. The window will look like below

  
  
  

  




• Then select the catagory and change fonts, size and colors as of your choice.

  
  
  

  Please note that, foreground color refers to the color of the text, which is may be of your interest. Background color is color behind those text.

Also, you may alternatively try some other style presets given by default by changing the value of the dropdown selection menu named profile.

Hope it will help.