I purchased a theme that is over 150 mb for shopify. When I tried to upload it to shopify, it said the file was too large. I then unzipped the files to see if there was some smaller file that could be uploaded. Sure enough, it looks like the theme has several versions, however they are all over the size limit for shopify. Any suggestions?
The author of that theme may have an idea. You can see their support information here - https://themeforest.net/item/ella-responsive-shopify-template/9691007/support
You should extract download package and upload theme file inside