How do you make the height of the header bigger

[Jacques Meuret]

I have created a custom header that has the height of 545 pixels. I
changed the height of the header in the .css, but when I upload an
image into the custom header tab in wordpress it only allows me to
have an image of 200 pixels instead of the 545 that I need.

[Chris Pemberton]

Go to /themes/k2/app/classes

For height edit:

@define( 'HEADER_IMAGE_HEIGHT', 200 );

For width edit:

// default k2 widths

   $default_widths =  array( 1 => 560, 1090, 950 );

The values are for one column, two columns and three columns respectively.