LMDE6 and Cinnamon 6.4 - New modal dialogs look inconsistent with non-mint desktop themes

[thegreatyellow67]

Hi, yestarday I've updated my LMDE6 virtualbox VM with the newest Cinnamon 6.4 updates. So, I realized that the new modal dialogs (confirmation dialogs, auth dialogs, system dialogs, volume popup, etc) don't look as expected. This happens because in Settings > Themes > Desktop I've chosen a third part theme instead of standard mint theme (Vimix theme). Same problem in my LMDE6 phisical PC. Is it possible to resolve this issue? Is it the non-Mint theme developer responsibility to adapt his theme with the new changes introduced with Cinnamon 6.4? Attached below are some images of what the new dialogs look like. Thanks in advance!

[fredcw]

Is it the non-Mint theme developer responsibility to adapt his theme with the new changes introduced with Cinnamon 6.4?

Yes, it's up to the theme developer to update their theme. see linuxmint/cinnamon-spices-themes#843