WebStorm Theme editor

1. Download theme from Color Themes
   
2. 
   
3. After download, we will get *.jar file like this
   
   
4. Launch WebStorm, then open/create any project
   
5. Select "File" -> "Import Setting" -> Select *.jar File
   
   
   
   
   
6. And then, we can use the new interface in WebStorm
   
   
   
7. So, if you want to change font size or the others, you can edit in "WebStorm(Top left)" ->
   "Preference" -> "Appearance" -> "Editor"
   
   
   Click the dropdown list, and you can select the theme what you want.
   
8. In the "Editor", you can expand it, and you will see lots of options, you can edit fonts or colors and ...