Changing Part headings (color and font size)

colorkoma-scriptsectioning

I would like to change the color of my part headings to match the other headings (cyan); however, if I just add a line

\setkomafont{part}{\color{cyan}

The color of the title is modified but also the its font gets much smaller.
How can I change the color without modifying its size?

If I add "LARGE":

\setkomafont{part}{\color{cyan}\LARGE}

Still, the font is smaller.

Also, I would like to modify the prefix; right now the header reads: "Part II. Whatever", and it is black. I would like "Part II Whatever" (without the dot after the Roman number) and cyan instead, as the rest of the headings (BTW I have seen many of you posting, besides the code, also its output, I am sorry but I could not understand how to do it).

I tried with

\renewcommand*{\partformat}{%
    {\color{cyan}\thepart}%
}

The roman number becomes cyan, the dot disappears, but also the word "part" is no longer present in the output.

Here is the code

\documentclass[chapterprefix=true]{scrbook}
\setcounter{secnumdepth}{0}
    \usepackage{xcolor, graphicx}
    \usepackage{geometry}
    \usepackage[T1]{fontenc}
    \usepackage[utf8]{inputenc}
    \usepackage[italian]{babel}
    \usepackage{textcomp}
    \usepackage{indentfirst}
    \usepackage{times}
    \usepackage{mathptmx}
    \usepackage{setspace}
    \doublespacing
    
    
    \definecolor{chaptergrey}{rgb}{0.7,0.7,0.7}
    
    \let\raggedchapter\raggedleft
    \addtokomafont{disposition}{\normalfont}
    %\setkomafont{element}{commands}
    \setkomafont{title}{\color{cyan}\LARGE}
    \setkomafont{chapter}{\color{cyan}\LARGE}
    \setkomafont{subtitle}{\color{black}}
    
    \renewcommand*{\chapterformat}{%
        \scalebox{3}{\color{cyan}\thechapter}%
    }
    
    
    \begin{document}
    \author{}
    
    \subject{Linea Guida}
    \title{\textbf{Il trattamento laparoscopico di laparocele e ernie ventrali}}
    \subtitle{}
    \titlehead{}
    
    
    \date{Gennaio 2022}
    
    \frontmatter
    \maketitle
    \tableofcontents
    \chapter{Intro}
    
    
    
    \mainmatter
    \part{Sviluppo della linea guida}
    \chapter{one}
    \chapter{two}
    \part{Quesiti}
    \chapter{three}
    \chapter{four}
  
\appendix
\chapter{AppendixA}
\chapter{AppendixB}
    
    \end{document}

Best Answer

Looks like the command:

\renewcommand*{\partformat}{\color{cyan}\partname~\thepart}

includes the partname (as suggested by @Imran), adds the color to it and also gets rid of the autodot feature.

Now all three problems are solved.

Related Question