I am making some non-CSS template changes. My question is, what's the best practice regarding these changes? Should I make them in the top-most parent? Or the bottom-most child? Example 1. For XenAtendo the default setting only allows setting times that are on the hour (i.e. 12:00). I need the ability to set events at other times (i.e. 12:30). To make this change I modify a variable from :00 to %i. My question is should I make the change in EWRatendo_EventScripts (Default style) or EWRatendo_EventsScripts (Flexile) or EWRatendo_EventScripts (Flexile Blue)? My template hierarchy is set as Default > Flexile (child of Default) > Flexile Blue (Child of Flexile). Example 2 is same idea but I am altering my footer. I only offer this example in case the first example was different due to it being part of an add-on, not the core product. My goal is for these changes to be seen in my site, yet for me to not receive Outdated Template notifications during upgrades, yet not to lose any functionality during upgrades.