Here are the Hooks that affects the Supreme Based Filters in certain areas. Locating them from the given files, you can add your PHP code at the particular respective file (E:g- functions.php) & CALL these hooks from there.
1) To change the arguments of loop pagination.
Filter Hooks – loop_pagination_args
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Loop-pagination.php
2) To change the thumbnail size
Filter Hooks – post_thumbnail_size
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Get-the-image.php
3) The meta key used by the script for post metadata
Filter Hooks – post_stylesheets_meta_key
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Post-stylesheets.php
4) To change the post layouts
Filter Hooks – get_post_layout
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Theme-layouts.php
5) To change the theme layouts
Filter Hooks – Get_theme_layout
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Theme-layouts.php
6) To allow plugins/theme to override the final output
Filter Hooks – get_the_image
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Get_the_image.php
7) To change html of image
Filter Hooks – post_thumbnail_html
Folder Location – wp-content > themes > Supreme > library > extensions
File Location – Get_the_image.php
8) Change comment form fields
Filter Hooks – comment_form_default_fields
Folder Location – wp-content > themes > Supreme
File Location – Comments.php