Header Image – Scale to Fit

When upgrading from v0.1.8 to v0.1.9 the formatting of the header image changed. In v0.1.8 the image was scaled to fit and I used an image size of 1000×330. In v0.1.9 the image is left aligned, doesn’t scale, and the template suggested size is 2600px width.

What is going on? Can you tell me what was changed so that I can at least put in a CSS over-ride and go back to having scale to fit (aka CSS cover).

(also, side note, the header element “Display description on header” has a habit of re-activating whenever any customisation is carried out)