Customizing

Using SCSS

You can customize the template with only custom the scss file. See the file structure below
/assets
    /scss
        app.scss
        bootstrap.scss
        _utilities.scss
        _variables.scss   <----- edit here
                        

Editing Components

Every component has it's own scss files. Go ahead to the scss file and edit.
/assets
    /scss
        /components
            _alert.scss
            _avatar.scss
            _badge.scss
            _breadcrumb.scss
            _buttons.scss
            _card.scss
            _carousel.scss
            _divider.scss
            _dropdowns.scss
            _forms.scss
            _icons.scss
            _modal.scss
            _navbar.scss
            _navs.scss
            _pagination.scss
            _progress.scss
            _sidebar.scss
            _table.scss