After gaining some insight from What point (pt) font size are \Large etc.?, now I want to change my font size values according to my preference.
As a follow up from the linked question, how can I set
\Large = 13pt
\LARGE = 15pt ?
In the linked question it's \Large = 14.4pt and \LARGE = 17.28pt.
The size for article.cls with option 11pt are declared in size11.clo. You can copy the definitions and change them. E.g. the original \Large is setup like this:
\newcommand\Large{\@setfontsize\Large\@xivpt{18}}
So use in your preamble (or a local sty).
\makeatletter %only needed in preamble
\renewcommand\Large{\@setfontsize\Large{13pt}{18}}
\makeatother
The 18 is the baselineskip (in pt). Adjust it to the value you want to use.
