SwitchThemeInjector VS Rekado

I updated my whole setup to the latest of everything at the time of TotK release. I'm not running 16.0.3 though, still on 16.0.2 Make sure you installed the ips patches intended for 16.x https://github.com/exelix11/SwitchThemeInjector/releases

I got it to work, I guess the issue was that I downloaded nxthemesinstaller from the HB app store. I downloaded from here and replaced the .nro and now I can see the themes

Nxthemes is supported on ver16 if you already have the nxthemes installer on your switch it should automatically install the update itself if not here's the GitHub page https://github.com/exelix11/SwitchThemeInjector/releases

Saw this and figured it might be of a little use to you. You might end up redoing Atmosphere because it would seem something might be wrong with your install. Just a guess. https://github.com/exelix11/SwitchThemeInjector/issues/119

First off download your image and the layout provided in your Themezer link, then grab the Switch Theme Injector (download the latest .zip, not the .nro). Your image needs to be 1280x720 in size otherwise this won't work. The layout file is what will be altering the icons' position along with maybe some colors/aesthetics adjustments.

When using with your phone, you often need a USB OTG adapter. If you're using Android, I'm assuming you're using Rekado. Here's an excerpt from their GitHub page about this:

RCM Loader is not worth of your money, I suggest you to buy an adapter for your phone, installing Rekado and connect your phone with adapter with your Switch. You need something like this, Adattatore USB-C a USB-A 3.0 OTG, USB Femmina a USB-C Maschio Compatibile con MacBook Pro, Samsung Galaxy, Telefoni di Tipo-C, Tablet e Altro (Nero e Bianco) https://amzn.eu/d/eKTem8B). Be sure that it can transfer files and you save 25-30 bucks. For the jig, I bought on Amazon, idk if you can buy it from here. I heard of some people that "handcrafted" their jig with hairpins, idk if works, you should try

Yes, theres an app https://github.com/MenosGrante/Rekado/releases

Some advice for after you've booted into custom firmware and got it all set up: consider using AutoRCM. It corrupts a single byte in the Switch's bootloader which causes it to boot automatically into RCM after every power cycle, eliminating the need for an RCM jig entirely after the first use. All you need to do then is inject your chosen payload using Rekado (if on Android), or iOUSB (if on iOS).

If you have android phone you can use that use the app called rekado that's what I use https://github.com/MenosGrante/Rekado/releases

After looking into how Atmosphere boots by looking for a reboot_payload.bin which you can have as ANY payload file (mine is Hekate) I've not needed to inject it by hand in a long time. And if I do ever need to I do it with my phone even using Rekado

Rekado: Payload launcher and serial number checker for Nintendo Switch