The top menu icons like the home one, in which file do i find where the image is named and the size is declared? I have hunted around and seen the cryptic clue about it not being a style image " but must be edited by other means" lol.

I am already 4/5th bald, spare the last 16 strands of hair i have and divulge the secrets :D.

Many thanks.

Please see

Composr Tutorial: Customising what's on the menus

Open Source CMS with advanced social, interactive and dynamic features. Fully flexible, themeable and extendible: suitable for building powerful websites.

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Size isn't enforced in many places in Composr, it's a matter of picking a size that matches the surrounding layout or adapting the layout rules to fit different sized images.