Change JFrame border in UIDefaults

Question

Which key in UIDefaults should I change to change the border color of all JFrames in the application from blue to something else?

I know there is no code here but it is a very terse question.

EDIT

Attached below is the image showing the JFrames which are not main windows, but are inside a layout. I reckon the main window is pained by the Native environment, but if the JFrames are inside the main window, then shouldn't I be able to customize the borders ?

Answer 1

Try the "windowBorder"-Key. Source: http://nadeausoftware.com/node/85#Systemcolors

Answer 2

Which key in UIDefaults should I change to change the border color of all JFrames in the application from blue to something else?

• there isn't any key for JFrame (e.i.) on Java side

• borders and tittle bar is decorated by Native OS, current color (font, sizing) theme is applied to all windows,

• you can to get 1st component from JFrame and to change color, font, but for title bar only, borders stays unchanged

• result is to use some of custom L&F can do that, e.g. Substance (I tried), there is created own Borders, titlebar and buttons as replacement