php - How do I manually edit an Omeka theme

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I'm building a digital archive using Omeka Classic and I would like to place little flag icons that link to versions of my site in different languages in the header, so I??�m trying to figure out how to tinker with the theme??�s code (The theme is Minimalist). I don??�t have a ton of programming experience, but I think I need to go to /themes/minimalist/common/header.php and add a php echo statement within the <div class="site-title"></div> tag to place my icons within the header section. And that??�s as far as I can get on my own.

Questions:

Do I need to define my icons as a variable somewhere and then write an echo statement to the effect of: <?php echo VARIABLE; ?> Php at this level is above my head, but it looks like this is how content is being generated.

Could I add an echo statement in the location suggested above without using a variable or constant? Maybe something like this? <?php echo <a class="lang" href="URL to Arabic language site"><img src="URL to flag image"/></a>; ?> And then I could style the .lang class to push the flags to the bottom right corner of the site-title div.

Just wanted to ask before I start experimenting and break the site.