Box 3.5.7

Lots of backend updates, Background Removal rebuilt to work fully offline without Google Play services, a new translation
model, and a layout fix for the image generator.

Background Removal now built in and fully offline (#153)

Background Removal no longer depends on Google Play services. It used ML Kit's subject
segmentation, where Google Play services downloads and runs the model. That meant it could never
work on GrapheneOS and other de-Googled ROMs, and on those phones leaving the screen showed a
"requires Google Play services" message.

It now runs U²-Net, an open-source (Apache-2.0) cut-out model that ships inside the app, on the
phone's GPU. No download, no internet, no Google Play services, on both the Main and
custom-rom-support builds. Edges are softer than before, so hair and fine outlines keep their
shape instead of being cut hard. Cut-outs are saved at up to 2048 pixels on the longest side.

Bundling the model makes the app about 88 MB larger.

New model: Hy-MT2-1.8B — translation

Tencent's 1.8B translation model, for translating text between 33 languages. It is a translation
model, not a chat model, so start your message with an instruction and then your text, for
example:

Translate the following text into French. Note that you should only output the translated
result without any additional explanation:

It works best with one translation per chat. It runs on the processor by default and needs a
phone with 8 GB of RAM or more. 1.8 GB download, Apache-2.0.

Image generator layout fixed (#203)

On the Stable Diffusion image screen, the Generate button could sit underneath the navigation
bar on phones and tablets using three-button navigation, making it hard to tap without hitting
Back or Home. It now sits above the bar.

The keyboard also covered the prompt fields: longer prompts could not be scrolled into view, and
the negative prompt was hidden completely while typing. The screen now shrinks above the keyboard,
so both fields stay visible.

Under the hood

various dep updates
AGP 9.5.1, Gradle 9.9.0, Material 3 1.5.0-rc01 and other library updates. Removed one unused
library and the ML Kit subject segmentation library. LiteRT and LiteRT-LM are deliberately held at
their current versions for stability. PQC ML-DSA-87 hybrid signed.

If you find box useful please consider making a donation via github sponsors or https://buymeacoffee.com/jegly