Unfortunately there is no support for custom header image in Graphene Mobile yet. This is mostly due to the variety of dimensions of different devices and orientation, that implementing such a feature is not a straightforward process.
For the time being, if you’re handy with coding, you can probably implement a temporary workaround for the feature yourself using pseudo-child theme for Graphene Mobile.
In Graphene mobile, I want to suppress the header (the block which contains site title Jetlag and Mayhem and tag line Tips on travelling…..). Instead I want to display a .jpg image. In view of the problem because different phones/browsers need different images sizes, I will make-do with a single image which will (sort of) fit all .
I can see the relevant code in themes/graphene-mobile/header.php
A simple way to deal with this would be to modify header.php – insert an additional tag and delete the lines which generate the header.
Is there a better way, using the child theme facility? as I am reluctant to modify header.php
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