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49

Android 5.0 Lollipop provides this feature by default: Enable Developer mode (by tapping build number within Settings > About phone multiple times) Go to Developer Options and turn it on. Under Hardware accelerated rendering you will see option called Simulate color space, click it and set it to Monochromacy.


11

Your current layout is called "Material Light". To change it, though there isn't a pure black version, go to Settings > Language and Input > Google Keyboard > Appearance and Layouts The dark material setting is called "Material Dark" and looks like this: I'm assuming you want material design as you are keeping it stock, but there are the old KitKat '...


6

Based on reddit (and I have tested it myself), apparently it's a feature of Nova Launcher on Android 6.0 Marshmallow called "Dark icons". It seems it's enabled by default for existing users after updating the app (on my case, new installation will have to turn this setting on manually). The setting can be checked on Nova Settings - Look & feel - Dark ...


5

I can't find a way to change the color of a contact either, but did find an inconvenient workaround. It's really only useful for a few contacts (I just cared about those on speed dial). Find a contact with the color you do want, then change the name and number. Then make a new contact for the one whose information you deleted (or switch them). The color ...


5

Go to google messenger app. (The new SMS app from Google) -> go into a conversation with the contact you want to change colors -> press the three dots on top -> pick People & options -> around the end you'll see a small color palette where you can go in and change the color. It seems that it currently works ONLY for people you texted (only through the ...


5

Your current layout is called "Material Light". To change it, go to Settings > Language and Input > Google Keyboard > Appearance and Layouts Holo White matches the kitkat default appearence - dark gray background, light gray buttons with white letters


4

After a lot of research I haven't (and from the comments, it looks like neither have other users) been able to find any resources on the internet regarding this curious phenomenon. I am, therefore, forced to accept this as some sort of Easter egg from the Samsung developers' side (although, in my opinion, Easter eggs should at least look nice.). This also ...


4

For me Tasker did the job, but you need an additional Tasker plug in for this, called AutoTools. On my bq android device root wasn't needed to do the job. I set up a profile to invert the screen when I open specific apps like my newspaper reader.


2

A launcher will not put the whole system in grayscale, only your home screen. The Samsung Galaxy S5 has a true grayscale function you can enable system wide. If you don't want to buy a Samsung Galaxy S5 then try CF.Lumen https://play.google.com/store/apps/details?id=eu.chainfire.lumen It can color the screen to a specific tint. As a side effect the ...


2

As you can see from the screenshot, you can definitely get colored output in ls on android. (side note - I've got some bashrc magic running so the default ls output is ls --color=auto) Probably you're either running ls in a sh shell and not bash, you've got a watered-down OEM version of ls, or there's some strange magic happening between ADB on Windows and ...


2

After some digging around, I unearthed some interesting developer settings that significantly jazz up my homescreen. The added benefit of this in-built solution is it doesn't block app installs :) There's also the colour inversion option under accessibility settings I'd post a screenshot of my new homescreen but it seems the filter isn't reflected in ...


2

The Touchwiz Lollipop skin has a limited number of color schemes available to use that can be accessed through Developer Options. I am not entirely sure what the purpose for them really is since they merely drain away colors and mute everything. Anyway, the new way to access Developer Options is to go to the About Device under the More tab in your settings ...


2

The colour I believe the background colour of each notification depends on the app that added it, I think the default is white for 'stock' Android. The line This is to separate the different levels of priority for notifications. I expect the Twilight one is set to lowest priority (MIN) whereas the weather one will likely have a higher priority (MAX). ...


2

You can't change it. There is an ongoing discussion in Google product forums. You can give a feedback there as also from the app OR uninstall this and find the previous version apk and install that / change the SMS app


1

Use substratum theme engine for this purpose. You can theme individual ui element with the help of this. You screenshot looks like you are using oreo build so you can use substratum even without root. Check out this link https://www.xda-developers.com/custom-themes-android-oreo-substratum/


1

Since the answer is a little light on details for novice Tasker users (like me). Here is how to do it step by step: Download and install Tasker Free trial version here Import the example for Tasker from here The example works for Gmail app and manipulates the accessibility_display_inversion_enabled property to toggle the color inversion. Making Gmail Dark ...


1

Under values > color.xml Your themes file ( values > styles.xml ) can link specific colors from this file like follows.. Style Script .. <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <item name="colorPrimary">@color/primary</item> <item name="colorPrimaryDark">@color/primary_dark</item> &...


1

I have an un-rooted android oneplus one and I recently upgraded to 6.0.1 I did not see any such problem in my phone. You can try following and see if it works: Try restarting the phone Try selecting a dark theme Make sure that your Cyanogen OS version is updated too (mine is 13.0) Let me know if it works :)


1

Based on @Andrew T.'s research, I understood that this isn't actually an issue with the system, rather it was a feature, "Dark Icons", that Nova Launcher only shows on and enables by default on Marshmallow, not on KitKat or lower (unsure about Lollipop). The option on Marshmallow devices exists under Nova Settings → Look and Feel → Dark Icons (a ...


1

I have found under setting (in Android 4.3 anyway) that I can go to Device: Accessibility:Negative Colors. This will produce the "inverse video" effect so normally white backgrounds are black. In conjunction with normal (or app enhanced) screen dimming this reduces liht significantly over the normal black on white output. I will update this answer if I ...


1

No, you can't do this without rooting or installing a custom ROM. Some apps allow you to select from predefined themes within the app, and you can install a custom launcher to change the appearance of the home screen and app drawer (the list of apps), but you can't change the appearance of all apps. If you could, there'd be no way for app authors to know ...


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