| Parameter | Value | |
|---|---|---|
| Designer | BK | |
| Size | 40.28 MB | |
| Format | MTZ | |
| Compatibility | HyperOS, MIUI (global) | Midnight Ocean Vibes: The Visual Language |
JellyB lands with a palette that feels pulled from the deep sea at twilight. Dark navy forms the backbone, while teal‑green accents ripple across icons, lock‑screen widgets, and wallpapers. The icon set leans toward a semi‑flat silhouette, each glyph trimmed with subtle gradients that give a sense of depth without overwhelming the eye. Wallpapers alternate between abstract wave patterns and high‑contrast silhouettes of marine life, providing a backdrop that never feels stale.
The status bar follows the same logic: a muted black that lets notification icons breathe, while the battery and signal indicators adopt a faint cyan glow. The lock screen introduces a dynamic element—an animated ripple that reacts to swipe gestures, turning a simple unlock into a mini‑show. Always‑on Display (AOD) isn’t left behind; it showcases a minimalist clock in a soft teal font, paired with a faint wave animation that conserves power while keeping the aesthetic consistent.
Every visual cue feels intentional. There’s no random splash of color; each hue is a shade of the sea, reinforcing the theme’s name. The result is a cohesive experience that feels both premium and calming, perfect for users who want a darker UI without sacrificing personality.
Suggested Read: Moon City MTZ vs Standard HyperOS Theme – Which Fits Your Phone?
Who’ll Fall in Love with JellyB
If you gravitate toward dark themes that still have a hint of color, JellyB hits the sweet spot. It’s built for:- Xiaomi and Redmi power users who enjoy tweaking their UI but don’t want to assemble a custom icon pack from scratch.
- Fans of marine‑inspired design—the subtle wave motifs and teal accents speak directly to that aesthetic.
- Night‑time readers who appreciate a low‑light UI that reduces eye strain while still offering enough contrast for readability.
- Device owners who run HyperOS or MIUI globally—the theme’s compatibility list guarantees it works on flagship and mid‑range models alike.
Even POCO users, who share the same hardware lineage, will find the theme fits naturally. If you prefer stark monochrome or pastel palettes, JellyB might feel too niche, but for anyone looking to add a splash of oceanic depth to their phone, it’s a strong contender.
Installation Walkthrough and What to Expect
The process is straightforward, but a few quirks are worth noting.- Download the MTZ file from the theme’s page. The package is 40.28 MB, so a stable Wi‑Fi connection is advisable.
- Open the Theme Store app on your device. If you’re on HyperOS, the store is pre‑installed; MIUI users will find it under Settings → Themes.
- Tap “Import” at the bottom of the Themes screen, then locate the downloaded MTZ file.
- Select JellyB and hit “Apply.” The system will prompt a brief reboot; accept it to let the new assets load fully.
- Check the lock screen and AOD after reboot. If any element appears misaligned, a second reboot usually resolves it.
During installation, the theme may temporarily replace your existing lock‑screen wallpaper. Keep a backup of any custom wallpaper you love; you can restore it after the theme is applied.
Compatibility Notes
JellyB officially supports HyperOS 2.0 and MIUI 14, but it also works on earlier MIUI versions (11‑13) as long as the device runs a global stable ROM. Custom ROM users—Xiaomi EU, MIUIRoom, or other HyperOS‑based builds—should experience no issues, provided the ROM includes the Theme Store component. If the Theme Store is missing, you can still import the MTZ file via the “Import” option in the Themes section.Expected Performance Impact
Because the theme relies on static assets and modest animations, there’s no noticeable battery drain beyond the usual AOD animation. Storage consumption is limited to the 40 MB package plus a few megabytes for cached icons. Users with limited internal storage should still have ample space after installation.Fine‑Tuning the Experience
JellyB gives you a solid base, but the built‑in customization tools let you tailor it further.- Icon size – Adjust via Settings → Home screen → Icon size. A slightly larger icon can make the teal gradients pop.
- Wallpaper rotation – The theme ships with a set of five wallpapers. Enable automatic rotation in Settings → Wallpaper for a fresh look each day.
- AOD clock style – Switch between 12‑hour and 24‑hour formats without leaving the theme.
- Accent color – While the teal is the default, you can replace it with a custom accent in the Theme Store’s “Accent” section, though this may break the cohesive sea‑tone if you stray too far.
Experimenting with these settings helps you keep the theme feeling personal rather than static.
Pros and Cons
Pros - Cohesive dark‑sea visual language - Low‑impact on battery and performance - Wide compatibility across HyperOS and MIUI devices - Dynamic lock‑screen animation adds flair - Easy import via standard Theme StoreCons
- Limited to a single color palette (no pastel or high‑contrast variants)
- AOD animation may be disabled on some power‑saving modes
- No built‑in light‑mode counterpart
- Requires manual wallpaper backup if you like custom images
Overall, JellyB delivers a polished, ocean‑themed experience that feels native to Xiaomi’s ecosystem while offering enough customization to keep power users happy.
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