headerbar remove the background image and change the background color to white.
then you have to go to the admin panel and refresh your template and your theme etc.
then you have to purge the cache then you have to refresh your browser.
it would be easier to go to the admin panel, on the left side, click on load settings
on the right side find "Recompile stale style components:" and set that to yes.
now, back to yoru admin panel main page, click the purge cache button.
then refresh your browser a few times.
now, each time you edit a style file and upload it back, all you have to do is refresh your browser to see the changes.
I'm baaaaaccckkkk. still doing work on donation basis. PM your needs.
Premium phpBB 3.3 Styles
If nobody is in the forest, does a tree really fall?