Tsukushi A Round Ultra Bold 5-Weight Font

Overview

Tsukushi A Round Ultra Bold 5-Weight Typography Suite (authored by beixin, based on upstream type engineering by lxgw) brings heavy, expressive rounded typography to rooted Android devices.

Standard mobile typefaces can appear thin and hard to distinguish outdoors or under direct sunlight. This module replaces standard system fonts with weighted variations of Tsukushi A Round Gothic, calibrated across 5 bold weight steps to ensure high-contrast readability, strong visual presence, and rounded, friendly terminal geometry.

Technical Architecture & How It Works

The typography stack maps into /system/etc/fonts.xml:

1. Multi-Weight Font Aliasing

The module maps 5 distinct weights to the Android system typography hierarchy:

<family name="sans-serif">
    <font weight="400" style="normal">Tsukushi-Medium.ttf</font>
    <font weight="500" style="normal">Tsukushi-SemiBold.ttf</font>
    <font weight="700" style="normal">Tsukushi-Bold.ttf</font>
    <font weight="800" style="normal">Tsukushi-ExtraBold.ttf</font>
    <font weight="900" style="normal">Tsukushi-Heavy.ttf</font>
</family>

2. Glyph Harmonization

Japanese typefaces commonly include variant kanji forms (Shinjitai) that differ from mainland simplified Chinese (Hanzi). This suite incorporates font glyph substitutions from the open-source LXGW project, ensuring that CJK unified ideographs render with correct stroke counts and regional orthography.

Troubleshooting & Verification

• Refreshing Font Caches: After flashing, perform a clean reboot. If specific third-party applications (like Chrome) retain old fonts, clear their application cache.
• Uninstalling: Simply toggle the module off in Magisk/KernelSU and reboot to return to system default fonts.