Hi.
I noticed an issue with favicons when we use child themes.
Right now, the favicons are loaded from main/parent theme; in case of an upgrade of theme the new favicons will overwride the custom ones, and I need to put my own favicons once again in that folder
I use child theme in order to have custom modifications, but the problem is on head-favicon.php which don't know to look for icons on child (current) theme, in fact it look on parent. Example:
  $path = osc_base_path() . 'oc-content/themes/epsilon/images/favicons/';
  $url = osc_base_url() . 'oc-content/themes/epsilon/images/favicons/';
Also I have some customizations on functions.php copied into child_theme, which also I guess the bellow function should call the right (child theme) modified functions.php:

  require_once ABS_PATH . 'oc-content/themes/epsilon/functions.php';

Same thing I observed also at Gamma theme.
 
Right now I put an sticky note for myself to take care about this at next upgrade but will be nice if back-end team will take into consideration to adjust the file so for the future to forget about this.
Like instead "epsilon" to have an variable like "$_current_theme".

thank you !

If you take care of this in child theme, do you need to do anything after update?
Would be beneficial if you share code changes you've did in child

For the moment I didn't put too much efforts on this, only I will replace the favicons after upgrade (in case they will overwrite existing/modified ones).
My point was maybe someone from back-end dev team will analyze and consider to adjust the head-favicon.php in order to look for icons in child theme if there is such theme...

Regarding modifications on child there is not too much to say, I just create 2 functions who will call the css and js from child and hooked them (without that modification the main/parent css and js were loaded); for this I followed an tutorial from your website.

This is the functions.php from child:

function gam_child_custom_css() {
 osc_enqueue_style('style-child', osc_current_web_theme_url('css/style-child.css'));
 osc_enqueue_style('responsive-child', osc_current_web_theme_url('css/responsive-child.css'));
 
 if(eps_is_dark_mode()) {
 osc_enqueue_style('dark-child', osc_current_web_theme_url('css/dark-child.css'));
 }
}
osc_add_hook('header', 'gam_child_custom_css');

function gam_child_custom_global_js() {
 osc_register_script('global', osc_current_web_theme_js_url('global-child.js'), array('jquery'));
}
osc_add_hook('header', 'gam_child_custom_global_js');