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Catalina Dynamic Wallpaper



Watercolor Wallpaper Collection. Get lost in the beauty of the Catalina water color wallpaper collection. This island paraside collection is bursting with color. Vibrant blue wallpaper, pink wallpaper, floral wallpaper, and geometric wallpaper get a new look with artistic watercolor wallapaper techniques. Go to sys prefs desktop & screen saver and choose the default dynamic Catalina wallpaper. Set it to 'dynamic' and exit sys prefs. Open Finder and navigate to the folder where your custom wallpaper lies. Right click your custom wallpaper and choose Set desktop picture. This will change the wallpaper while also preserving the dynamic setting.

Dropshare 4 0 – secure file sharing tool. The latest version of macOS comes with a “dynamic desktop” background that subtly changes throughout the day. In this post we show you how you to use it on your Linux desktop.

As we said in our post on macOS Mojave features available on Linux: time-triggered wallpapers are not new. They’ve been available for a long, long time. Heck, you might already use one. Kcncrew pack 12 15 18 download free.

Once enabled, your desktop background will change every few hours to an image that reflects the time of day.

But there’s no denying that Apple’s choice of subject matter, its high quality photography, and the subtle transition from day to night between each shot is a touch classier than shuffling between random set of wallpapers every 30 mins.

Want the same thing on Linux? You can. One of our Twitter followers got in touch to share a bespoke GTK background slideshow he’s created. This borrows the high-resolution macOS Mojave dynamic desktop wallpapers and matches it up to a time-based schedule written in xml.

It looks and works great.

Once enabled, your desktop wallpaper changes every few hours to 1 of 16 images that reflect the time of day.

Use macOS Mojave Dynamic Desktop Wallpapers on Linux

Wan to get the slideshow up and running on your system? You can, though it does require a couple of steps (nothing too difficult, mind).

1. Download macOS Mojave wallpapers

First things first: you need to download the macOS Mojave desert wallpapers. These can be downloaded from a number of places online, in a variety of resolutions, with a variety of licensing disclaimers.

The author of this script has a direct link to a complete .zip of macOS Mojave wallpapers in 5K resolution. You’ll find the link at the top of his Github Gist.

Just copy/paste that link in to a new browser tab to download the archive.

2. Create a ‘wallpapers’ folder

Next, head to the Pictures directory in your home folder and create a new folder called ‘wallpapers’ (all lowercase).

Extract the .zip you downloaded in the step above into the new ‘wallpapers’ folder you created.

There’s a typo in the name of the folder that you need to fix. Just edit the folder name and replace the underscore (_) between ‘mojave’ and ‘dynamic’ for a hyphen (-).

You should end up with a path like this (where * is a number between 1-16):

It’s important that you do not change the filename of any images inside this folder, and ensure that the folder name itself is correct. This is because the XML slideshow uses hardcoded paths.

If you have to change file names, make sure you amend the XML file in the next step accordingly.

3. Get the XML slideshow

The following XML file is what tells your desktop which wallpaper to apply at what time of day. 16 doesn’t divide into 24 neatly, so it’s not as simply as shuffling wallpapers on the hour, every hour:

Download the XML from Gist using the link below:

Once downloaded you need to open the mojave.xml file in a text editor of your choice to run find/replace on ‘thanh‘, replacing this username with your systems’ username.

So, for example, on my system each path goes from this (bold denotes change):

to this:

Remember to hit save after you’re done tweaking it. Path finder 8 2 1 download free.

4. Set the macOS Mojave Dynamic Wallpaper

With everything downloaded to the correct place and tweaked appropriately you can go ahead and set the wallpaper slide on your system,

To do this, open the GNOME Tweaks tool and, in the Appearance section, select the mojave.xml as your desktop background.

Catalina Dynamic Wallpapers

All going well the change will take effect instantly.

The exact image you see first will depend on the time of day it is. If you’re following this guide in the evening you can expect to see a night-time shot, while those of you doing this in the morning will see a lighter, daytime image, like so:

I've created this wallpaper slideshow for GNOME Linux that replicate the dynamic background on macOS Mojave. Quite nice to see the background changes to reflect time of the day. Follow this link for instruction: https://t.co/6OVZxNpuCA cc @omgubuntupic.twitter.com/gg4Qr3WsOd

— Thanh Trần (@trongthanh) June 26, 2018

Summary

Is this pure eye candy or something that could prove essential? I’ll let you decide, but I will say that it’s all-too easy to lose track of time when you’re working (or gaming) all day.

But with this dynamic desktop wallpaper set your Ubuntu desktop picture changes with the time of day helping guide your sense of time (consciously or unconsciously) along with it.

To go with dark mode, macOS Mojave introduced a feature called “dynamic wallpapers”. Once enabled, a dynamic wallpaper would cycle between a number of related images1, showing one that was appropriate for the time of day.

Keeping with tradition macOS Catalina includes a new default wallpaper, and while it is a dynamic desktop, it works a bit differently: It only has two images rather than sixteen, and rather than switching between them based on time, the wallpaper is set based on whether your appearance preference is set to light or dark mode. This style is even acknowledged separately in System Preferences as “Automatic” rather than “Dynamic”.

While I was enamoured with Mojave’s dynamic desktops at first, I ended up switching to a regular wallpaper after some time. I don’t use dark mode only at night2, and so I’d often be left with a dark UI and a searing bright wallpaper.

So naturally I was excited to create my own dynamic desktops with this new style, but like with the previous ones, Apple hasn’t said anything about how one would go about doing that.

Mojave’s Dynamic Desktop Format

As it turns out though Mattt at NSHipster had done some digging around into the format for Mojave and that proved to be a good starting place.

Encoded within the heic https://parkdoln.weebly.com/why-is-out-of-office-grayed-out-on-office-365-for-mac.html. file for the default dynamic wallpaper for Mojave was a metadata item named “solar”, which detailed the position of the sun in the sky in terms of its altitude and azimuth, for each of the images.

The general format for the solar metadata was as follows: Totalspaces 2 8 6 – the ultimate grid spaces manager.

The d and l were bits that Mattt wasn’t able to figure out; more about those in a bit.

And here’s the data in it’s XMP form:

Playr 2 2 1 download free. Equipped with this information and the companion Playgrounds, I set about trying to figure out Catalina’s dynamic desktop format. It’s worth reading the NSHipster post before proceeding any further since I’m leaning heavily on that.

Catalina’s Dynamic Desktop Format

I hadn’t installed Catalina at this time, so I obtained the wallpaper from here (it’s the Dynamic.heic file).

Reading the metadata, while there wasn’t a solar item to be found, there was one named apr. Here’s the data included with that:

Here's what I got after putting it through a PropertyListDecoder:

Gone is all the solar positioning data from Mojave’s format, and this is much simpler. Just two keys, with two integer values.

d and l, it turns out, are the indices for the dark and light wallpapers, respectively. Their inclusion in the Mojave format suggests that the “Automatic” style might also be enabled for these wallpapers in the future, however this doesn’t seem to be true as of the first beta for Catalina.

Dynamic desktop mac catalina

Catalina Dynamic Wallpaper Design

The XMP format is also slightly tweaked, with the apple_desktop:solar tag being replaced with an apple_desktop:apr tag

That’s all the information we need to make new wallpapers of our own!

Generating Dynamic Wallpapers

The code below is tweaked from Mattt’s aforementioned Playground.

First we have references to the two light and dark wallpapers. These must be stored in the Playground’s Resources folder:

Next, a location for where the final image must be stored:

Catalina makes some changes to how permissions work for certain folders including the desktop, so you might need to change the location.

We then create a CGImageDestination:

Then we create a metadata item and populate it as per the XML structure:

We then convert the images to CGImages and write them to file, including the metadata along with the first image:

And lastly we finalise the conversion:

Once this has finished executing, we should have our image at the destination URL, ready for use!

The automatic wallpapers work in Mojave too, although setting them somewhat glitches out the UI in System Preferences.

Even though iOS 13 ships with its own dynamic wallpapers, neither the official Catalina wallpaper nor any that I’ve generated seem to work there. Hopefully that’s just a beta bug.

You can find the full source code for the above on my fork of Mattt’s repo. I have also made some dynamic wallpapers from the wallpapers shipping with iOS 13, which can be downloaded here.

  1. The two wallpapers bundled with Mojave, the eponymous “Mojave” and “Solar Gradients”, include 16 images each.

  2. I switch between themes enough that I even made my first Mac app, Nocturnal, to make it easier to do so.





Catalina Dynamic Wallpaper
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