dark theme for Qt designer

aria_aa

Hello.
I am new with Qt and wanna know how to change Qt designer theme to dark on windows?
I searched but couldn't find any option to change theme
It's look like this now and so bright
alt text

mrjj

Hi and welcome to the forums.

I dont think you can for Standalone Designer.

You can with the one embedded in Creator but I think its due to creator's theme.

aria_aa

@mrjj
Thank you
I changed Creator theme and that is dark now but didn't effect on Designer.
So do you think it's not possible?
Working with such a program is like looking at the sun.

mrjj

@aria_aa

Hi
Is there a reason you want to use the standalone Designer exe ?
If not using python, the one in Creator can all the same things and more.
Its just integrated.

So do you think it's not possible?
Yes. as The Creator and Stand alone Designer does not share settings.
Working with such a program is like looking at the sun.
Hehe it's funny how people are different with dark/light themes.
For me - dark themes are like trying to read in the dark and gives me head ache very fast.

Thank You

Hi @aria_aa
Look here at the @mrjj question on the something same topic
https://forum.qt.io/topic/56138/solved-qt-designer-theme-change-color-of-ui-widget-list

For windows,
If you change your QT creator theme, it affects the QT UI editor inside it , but not sure how to do that separately in Qt designer

For changing QT creator theme,

Go to Tools,
Then go to Environment
Change the theme to dark , I guess there are options like *Flat theme, and others * in windows,
And press OK , It may take few seconds to implement

Its done!!!

In Linux
You can simply change the theme of Os and QT designer adapts with it

It looks soo cool here

@mrjj

For me - dark themes are like trying to read in the dark and gives me head ache very fast.

Ohh , That's quite different than me, I like almost everything with dark theme mostly computer. Even dark room while coding LOL

aria_aa

@mrjj

Is there a reason you want to use the standalone Designer exe ?
If not using python, the one in Creator can all the same things and more.
- I sometimes using C/C++ and sometimes using Python.
- But the reason that I use standalone designer is in my creator always the button of designer are inactive and I don't know why?
  I did never use the internal designer and don't know anything about that.
Hehe it's funny how people are different with dark/light themes.
For me - dark themes are like trying to read in the dark and gives me head ache very fast.
- That was interesting for me to know about your experience in using dark theme

@Thank-You

Look here at the @mrjj question on the something same topic
https://forum.qt.io/topic/56138/solved-qt-designer-theme-change-color-of-ui-widget-list
- my Qt is new (Creator V4.15.2 and Designer V8.0.1) and I have those file already
For changing QT creator theme
- I did change my creator theme to dark but internal designer is inactive so I must use standalone designer

mrjj

@aria_aa
Hi
I have not tried python with Creator so I don't know if it works the same as c++

In c++, you should add a UI file to the project.

If you create a default GUI project then UI file is already there and Design button works works.

Thank You

@aria_aa

I did change my creator theme to dark but internal designer is inactive so I must use standalone designer

If you have opened other than UI files then it will disable that Design button.

If this is the thing, then
Open the file from file options at the menu, it should work , In my case it works.
If it didn't
Can you show the screen shot of the window when you tried opening
UI file in QT creator using menu at the top.

aria_aa

@mrjj @Thank-You
Thanks a lot.
For internal designer it works now.
Design button activated after create .ui file and it works same for both C/C++ and python.

But stand alone designer shines like the sun yet and we can't do anything for that. :)
Thank you again.

plobby

@aria_aa

I know this thread is ancient, but for anyone looking for a quick fix to enable a dark-theme in the standalone designer app:

1: Navigate to the shortcut for Qt Designer.
2: Right click, go to properties, append this to the path.

C:\Qt\6.6.1\mingw_64\bin\designer.exe -style Fusion

Hopefully that helps someone. Took me way too long to figure that out.