how to define a new colorbox command or environment like this?

Question

I want to DIY a environment like the tcolorbox stye:

and I read the docs of tcolorbox and find this:

    \begin{docTcbKey}[][doc new=2014-11-28]{no recording}{}{}
  Disables \refCom{tcbrecord} and \refKey{/tcb/record} inside the current
  group.
\end{docTcbKey}

and the docTcbkey is define as \tcbmakedocSubKey{docTcbKey}{tcb}

but the doctcbkey is write latex3:

    \NewDocumentCommand \tcbmakedocSubKey { m m }
  {
    \NewDocumentEnvironment{#1}{ O{} +O{} m m +m }
      {
        \__tcobox_doc_entry_begin:nnn
          {
            doc@sub@keypath=#2,
            doc~keypath=##1,
            doc~name={##3},
            doc~parameter={##4},
            doc~description={##5},
            ##2
          }
          {}{key}
      }
      {
        \__tcobox_doc_entry_end:n { key }
      }
    \NewDocumentEnvironment{#1*}{}
      {
        \group_begin:
        \tcb@doc@toindexfalse
        \begin{#1}
      }
      {
        \end{#1}
        \group_end:
      }
  }

it is complex, it is more easy to design a new tcolorbox environment and I want to make a key like this:

1. first replace /tcb withtcb 2.then the delimiter / with _
2. then last number `123`` can be changed to any number that can be filled
3. the right side is with other text
4. here is the template : change the /tcb/vig/south to SYS_VIG_123

Answer 1

The simple one!

\colorlet{shadecolor}{blue!10}

\colorbox{blue!10}{Put your text}

Answer 2

\documentclass{article}
\usepackage[most]{tcolorbox}

\newcommand{\mykey}[3][]{%
    \begin{tcolorbox}[colback=red!30, 
    boxrule=0pt, attach title to upper={\hfill},
    fonttitle=\ttfamily, coltitle=purple,title=#2,#1]#3\end{tcolorbox}}
    
\begin{document}
\mykey{Some text}{More text}

\mykey[colback=cyan!30, coltitle=blue!70!black]{Some text}{More text}
\end{document}