I'm seeking clarification about customization using the T3 system. Your documentation indicates that there are only two recommended methods: LESS and custom.css. On this completed project I worked from two clones of the blue theme to create Local themes for our frontpage and inside pages. I also created a corresponding custom.css file for each and made my edits there. But based on further reading at different forums I am questioning whether that is really necessary.
If I work from a local theme, cannot I simply edit the template.css?
When a template update becomes available, will it only override the default themes and leave the Local themes alone?
Because the template will not include the Local themes which webmaster created?
So, are there actually not three ways to customize instead of two?
Thanks to anyone who can shed light on this.