Perhaps see Creating a custom export format and clone the existing Static HTML export eg clone $:/core/templates/exporters/StaticRiver
Then look inside you clone to uncover what it is made up of, modify and clone or rename anything you want to alter within that.
Note: this tiddler is in effect a template the composes the resulting HTML file. see how it starts with <!doctype html> and ends with </body></html>?
However there is a chain of transclusions, below, that leads to the use of $:/core/ui/ViewTemplate (Don’t change this). I clone it in the below solution.
More details; you will see on investigation the “export static HTML” uses
$:/core/templates/html-tiddler
$:/core/templates/exporters/StaticRiver/Content
$:/core/templates/static-tiddler
and ultimately $:/core/ui/ViewTemplate and it is this that includes all viewTemplate items
Remember replaces existing Static Tiddler export. Delete all three to restore existing.
There are some other tweaks I would include including removing the message at the top and making “internal links” open the full wiki, ensure the full wiki has a splash screen etc…
Above example doesn’t work with Android. It’s probably the same with iPhones.
Here’s an even easier way:
You will need a simple text editor.
1 Export the tiddler as a .tid
2 Open with a text editor
3 Delete lines (field: value) you don’t need, such as the tags: NewTiddler, etc.
4 Save and import to TiddlyWiki
5 Export as static .html