I downloaded the metronic 9 package after purchasing and implemented a theme toggle button in the demo site as referenced in this documentation https://keenthemes.com/metronic/tailwind/docs/components/theme . The button would disappear and upon investigation the css provided seems to lack the rule
.dark\:flex:is(.dark *) {
display:flex
}
that is hosted in the styles.css used in the documentation site. This is concerning as there seem to be other discrepancies as well, the prior rule is block in the public and inline block in the downloaded copy. What should I do to ensure I have the correct version with all the correct source so I don't have to debug things like this?

From public docs:
.dark\:block:is(.dark *) {
display:block
}
.dark\:flex:is(.dark *) {
display:flex
}
.dark\:hidden:is(.dark *) {
display:none
}

From provided download at themeforest:
.dark\:block:is(.dark *) {
display: block;
}

.dark\:inline-block:is(.dark *) {
display: inline-block;
}

.dark\:hidden:is(.dark *) {
display: none;
}