How to change background colour of frame in 3b1bmanim? - manim

I downloaded latest version of 3b1b manim from github. When I render the scenes by default background is gray how to change it to black.

In your manim-master folder open custom defaults.yml change bgcolor from #33333 to #00000

Related

Background colour does not change for dark/light change when transparency used MacOS swift

When I am using window background transparency in my app made for MacOS, when the system is switching from light to dark, or back, the colour change does not work.
This is how I change the transparency on the window background.
self.view.window?.backgroundColor = NSColor(named: "BackgroundColor")!.withAlphaComponent(WindowTransparency)
With the above code when I change the style from light to dark, it do not change.
When I am changing the code to
self.view.window?.backgroundColor = NSColor(named: "BackgroundColor")!
than the result is expected. With the system notification I call this line and it is perfectly changing the background color.
What can be the problem?

Storyboard is not showing custom color hex code in XCode 12.0.1

After updating to the latest Xcode, into storyboard I am not able to see actual custom color hex code. It is showing a white(FFFFFF) color hex code all time.
Can someone please help me with this? Please check the below screenshot.
I have noticed this same problem since the latest XCode Version 12.0.1.
A workaround that works for me is to
Click on the custom color to bring up the color chooser.
The color chooser is the wrong color, but tap on any other color in the color chooser.
Tap Cmd+Z to undo the color change. Magically the original custom color is now selected in the color chooser.
Almost the same idea work around and quicker without needing to change the color (and then reverse):
Select your color (this will make the color picker appear) in the drop list.
Select again your color (with the picker still shown) in the drop list (not in the color picker window), it will update the picker to your color.
Apple has now fixed this issue in Xcode 12.5
Fixed an issue where the custom colors swatch in an inspector’s color
properties displayed an incorrectly offset focus indicator.
Reference: Apple Xcode 12.5 Release Notes

IOS NotificationContentExtension background color to match the theme

Hello
When creating NotificationContentExtension I can control the background color. I can also detect if the user has a dark or light theme.
I'd like to change the contentExtension background to either dark or light background to match the iPhone colors.
How can I get (preferably in runtime) the colors of the theme? Just to be clear - in the image attached you can see the notification has a "dark" header. I'd like to know the color of it exactly so I can match the content to be the same color. (instead of the current "black" color)
You can use UIColor.systemBackground
https://developer.apple.com/documentation/uikit/uicolor/ui_element_colors

Set background image for launchscreen.xib in ios

I need to set a background color or background image in my iOS application's launch screen. I was wondering if there was a code similar to:
self.view.backgroundcolor=[UIColor redColor];
Thank you
If you want to set background image for launch screen than there is two way:
Use image.axassets and add new LaunchImage set in it.
You can add UIImageView in LaunchScreen.xib and set image to it.
If you want to set background colour for launch image than add UIView in LaunchScreen.xib and set backgroundColor propertity of it.
Both way is easy but I preferred to go with image.axassets LunchImage set.
Note: If you use image.axassets LaunchImage than do not forget to migrate this set with application.

How to set Hex color code in xib in iOS

I am not finding an option for Hex color code in xib color picker in xcode.
But I have seen in stack over flow answer,
https://stackoverflow.com/a/27283783/4391112.
In this, image is having Hex color code option in color picker.
Xcode version : 6.1.1
How can i get that hex color code in color picker in xib.
Please suggest me.
Thanks
Update: Is there any plugin for xcode to select color in hexa color code. I am using xcode 6.1.1.
or is there any setting in xcode to change the colr in hexa code.
please help me guys
Select Color Picker From Xib , then choose the RGB Slider from second option Color Slider , now you can Enter HEX color (Below RGB Slider) Codes or Select RGB Values from Sliders.
xcode version 11.x
Within the view controller,
click on custom for background.
Click on the 3 line rgb sliders tab
Click Grayscale slider
Choose RGB Sliders

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