Import previous used theme

[darkdragon]

Hi,

We want to import a previously used theme (trying to convert it form ANM2021) and we get a tons of errors.
We figured out to replace some codes in the xml file, like from theme-color("primary") to map-get($theme-colors, "primary"), but right now we have some errors like undefined variables:

[MichaelG]

Unfortunately you cannot use theme from previous version since they use a different Bootstrap version.