Hi Jeroen,

it might make sense to use

\setuphead[chapter][
   conversion=R,
]
\setuplabeltext[nl][chapter={Boek }]

instead of ownnumber.

I would use one command for number and title and put both in the same 
kind of frame. Probably you should use a \strut in the text or 
\inframed[strut=yes] to assure the same text height.

HTH, Hraban

Am 19.03.24 um 12:59 schrieb Jeroen:
> I have some style adjustments for the chapters. The chapter "numbers" 
> need to be Boek I, Boek II, etc. A vertical separator was introduced 
> with an inframe. The chapter title at the right side does not 
> vertically align properly with the chapter number in the frame (inside 
> the frame is vertically centered, the title not). Is there a way to 
> align the chapter title with the chapter number?
>
>
>
> \starttexdefinition MyNumberChapterCommand #1
>     \inframed[frame=off,rightframe=on,framecolor=black,
>      rulethickness=1px,height=30pt]{#1\enspace}
> \stoptexdefinition
>
> \setuphead[chapter][style={\bfc},numbercommand=\MyNumberChapterCommand,
>     page=no]
>
> \starttext
>
> \startchapter
>   [title={Algemene Beginselen},
>    ownnumber={Boek I}]
>
> \samplefile{tufte}
>
> \stopchapter
>
> \startchapter
>   [title={Organisatorische Structuren},
>    ownnumber={Boek II}]
>
> \samplefile{tufte}
>
> \stopchapter
>
> \stoptext
>
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