The font you have selected will override settings for any other style in Notepad++. The last step is to click 'Save & Close'. Analogically you can also make the font bold, italic or underlined. If you want to actually use these global override settings, you must also tick the particular boxes below – in this case 'Enable global font' and 'Enable global font size'. To change font size, select a new one from the dropdown menu next to 'Font size'. Most people prefer to use a monospace font (where each character occupies the same amount of horizontal space) for better readability of code or market data files. To change font face, select a new one from the dropdown menu next to 'Font name'. The font is changed on the right side of the Style Configurator window. This style is listed as the first and if you haven't used Style Configurator before it will be selected by default when you open it. In order to change font for all types of files, make sure you have selected 'Global override' in the group 'Global Styles'.

Besides styles for individual programming languages and file types, there is a group of Global Styles which apply universally. There are many different styles in Notepad++. You can access that via Main Menu / Settings / Style Configurator. You can change Notepad++ font face and size in a window called Style Configurator.

Notepad++ change font