but maybe the issue is it can’t trigger automatically so far? there was a thread about it
<$action-setfield $tiddler="$:/palette" $value={{{ [{$:/info/darkmode}match[yes]then[$:/palettes/makiaeadark]else[$:/palettes/makiaea]] }}}/>
to activate, set tag $:/tags/StartupAction/Browser
currently also recognises system darkmode and matches it