How to define own Style and Colour

Hi there,
I’m trying to find out how can I define own Style and Colour.

e.g. I created ImageBox and there I can choose from 2 Styles:
– Boxed
– Simple
and my idea is to use my own Style because I need different background colour (Simple style uses some grey background) … so goal is use ‘Simple’ style but with different background.

Another thing is the button colour. e.g. I would like to use some button and I’m using code like this:

1	[minti_button link="#" size="small" target="_self" lightbox="false" color="color-3" icon=""]Take a Tour[/minti_button]

so there are ‘color-3’ defined style … but I need to use different colour, background and border for that button. How can I define my own color style or how can I modify existing one?

Thanks!

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