Issues about syntax coloring & window's color

[DemoCrazer]

• Java: Method Declaration I set font style to 'Plain' but it is always displayed as italic.
• XML: pi-content I tried to change the foreground color but it is always initialized after restarting IDE.
• 'Settings' window: Background color If I activate any plugins in 'Settings' window, the background color of around search bar turns into white.