tested this plugin, CategoryImageHeader version 2.2, but it failed.... no effect at all on category.
By the way I am using Bootstrap theme. Not sure if that has any effect.
Aint what HeroImage(new addition to core) is for?
Yes you are right.... somehow I missed it.
By the way, I tried enabling HeroImage, and also configured the specific image for specific category. But still it does not show.
Where shall I look for debugging?
Hero Image requires the theme you are using to support it. Keystone requires you to also toggle a theme option to have it display.
Head over to the "Theme Options" page to toggle the integration.
Yes, you are right, theme has to support it.