Do template changes survive plugin updates?

So when I first installed the plugin, the featured image thumbnail always appeared at the bottom of each event listing. Client wanted the image at the top left, with the title and other text wrapping around it.

In the php file, I took the section called
// featured image

and pasted it after

	// meta section
	if ($page_title_location != 'yes') {
		$output .= $page_meta_section_start;
	}

This made the image appear first. Then I edited the vsel-style.min.css to make the image float left and removed float attributes from the text, along with sizing and other adjustments. So it kind of did this:

Before:

Title Text Title Text
Other text and date info here lorem ipsum
dolor sit amet...
Tags, etc.
                    [image]
                    [image]

After:

[image] Title Text Title Text
[image] Other text and date info here lorem
ipsum dolor sit amet...
Tags, etc.

Ok, thanks for the follow-up. If you take feature suggestions for VSEL, how about someday including an option for using custom templates? Something simple like a checkbox that says “Use custom template” that simply makes the plugin load a different php file, and maybe a different css file as well. That way people who want to go from “Very Simple” to just “Kinda Simple” could still use your plugin and keep it updated without too much difficulty.