[Regression] JENKINS-70128 Dismiss button unreadable in old data monitor with dark theme

jenkinsci/jenkins#7364 has introduced a regression on the weekly line. JENKINS-70128 contains the steps to reproduce, expected result, and actual result. At the time of this writing, jenkinsci/jenkins#

[Regression] JENKINS-70112 Pressing "Apply" in a configuration is considered a modification

jenkinsci/jenkins#7203 has introduced a regression on the weekly line. JENKINS-70112 contains the steps to reproduce, expected result, and actual result. At the time of this writing, jenkinsci/jenkins#