Removed the background from the space behind the priority graph
Removed the background from the space behind the priority graph

The column needs to exist, but there's no reason for it to have a background. Especially when using custom CSS, these white bars are clearly noticeable.

jenkinsci/analysis-core-plugin,amuniz/analysis-core-plugin,recena/analysis-core-plugin,jenkinsci/warnings-plugin,stephenc/analysis-core-plugin,recena/analysis-core-plugin,recena/analysis-core-plugin,amuniz/analysis-core-plugin,stephenc/analysis-core-plugin,stephenc/analysis-core-plugin,jenkinsci/warnings-plugin,amuniz/analysis-core-plugin,jenkinsci/analysis-core-plugin,jenkinsci/analysis-core-plugin,recena/analysis-core-plugin,stephenc/analysis-core-plugin,jenkinsci/warnings-plugin,jenkinsci/analysis-core-plugin,amuniz/analysis-core-plugin