Hi James,
I’m afraid that I’m not sure what ‘Intro’ font is here, pls clarify it more specific.
Regarding to the off-canvas, you will need to change LESS file (variables.less) a bit to achieve that. Just open the file: ROOT/templates/ja_jason/less/variables.less
Look for this declaration (under Media Queries Breakpoints section):
// Small screen / tablet
// Note: Deprecated @screen-sm and @screen-tablet as of v3.0.1
@screen-sm: 2400px; <<< or change to your desired screen resolution
@screen-sm-min: @screen-sm;
@screen-tablet: @screen-sm-min;
One notice is that if your site is running with Development Mode (you can check in Template manager), just refresh front-end of your site to see the change.
But if the Development Mode is OFF, you will need to compile LESS to CSS to make this change affected on your site. REMEMBER to backup all current CSS files first as when compiling, they will be overridden.