No apologies, it's shopifys mistake in poorly naming things and not providing a singular Platform feedback forum, so the feedback forum is a bit ambigous.
For the topic there's lot to unpack here , most of it really can be summed up as just hire someone to handle theme design.
Learn to delegate and learn not to resent ; and expunge the weird dissonance that comes from working with virtual-systems from your thought process versus physical reality.
If you had a brick and mortar store would you complain how hard it is to build a concrete façade? Or replace the signage 20ft in the air?
Or would hire someone who has the experience and tools to do a job that really has nothing to do with your business model and personal experience and really is just a waste of your time to try and DIY every little thing.
Themes are baselines to start with, not an end result meeting all your needs out of the box.
Again if you had a B&M would you think this way? You have to buy and setup displays, get wall art, hire contractors, run electricity, etc , etc.
It's virtual dissonance just because it's virtual doesn't remove complexity or save you time in learning the systems.
Themes in places like themeforest are cheap for a reason and in the long run tend to cost most merchants more fixing the problems those themes come with.
Performance being the most common issue so that $60 you so carefully budgeted for is costing you hundreds to thousands in conversions.
They are cheap for a reason, don't fall for a kitchen sink of bullet points for marketing purposes. It's noise.
The "code page" , the editor in the admin is bare minimum it is not mean a full fledged code environment it's mean for simple changes.
Nor is it meant for learning how themes are made that is a separate process though it would be nice if there was a map of how the files relate but bit of a moot point because of how complex that is to implement.
but the slideshow banner is WAY too huge.
Ditch any slideshows on landing pages above the fold they are just consistent money losers and money sinks, use a singular hero image and CtA.
Also, it would be great if shopify added the ability to add a fee to credit card users - i.e. pay an extra 30 cents if you are paying by credit card
There is a payments forum that may have solutions for this, or an already existing feature-request thread.
Most good themes should have a section "image and button" or image and text, etc.
The image you have to create , typically it's just the image your already using for the first slide in a carousel.