Today I noticed that inwards that location is an alternative for setting the Sidebar background color under the Template Designer > Customize > Advanced tool. However it doesn't look to work.
Investigating the template shows that as proficient as this sidebar background color (which is correctly seat upward by times the alternative above), the template also specifies a background image (ie non a colour) to role inwards the sidebars. This isn't removed when the overall background ikon for the template is removed, as good as cannot deed controlled from the template designer.
But it's simple enough to teach rid of it, by times adjacent these steps:
1 Edit the template inwards the common way.
ii Tick the expand widgets checkbox.
iii Find this code:
background: $(widget.outer.background.color) $(widget.outer.background.gradient) repeat scroll top left;
4 And either replace it with this code, or delete the line entirely.
/* background: $(widget.outer.background.color) $(widget.outer.background.gradient) repeat scroll top left; */
The starting 4th dimension alternative simply comment its out, important yous lot could re-instate it inwards i case ane time to a greater extent than by times removing the /* as good as */. But if yous lot are for sure that yous lot never wishing it back, simply delete the whole delineate concern instead.
Depending on the sidebar layout chosen, inwards that location may deed one or to a greater extent than places where the background ikon is. Make for sure that yous lot do all of them that yous lot wishing the background removed from.
Also, if yous lot later pick out a different layout, yous lot construct bespeak to accept away the background ikon inwards i case ane time to a greater extent than flush though yous lot haven't very changed templates.