Asset Pack Builder

Pack Info

Pack ID (a-z, 0-9, _, -)

Display name

Version

App icon key (optional)

Hex RGB without alpha. Format: 0xRRGGBB

Drop 32-bit RGBA PNGs. Converted to rgb565a8 at 32px & 64px.

Apply one image to all icons

Source PNG (240×320+)

Choose background PNG No file

full for PSRAM, half for internal RAM, tiny/tile as fallbacks.

Download .gtheme

Source pack includes the original PNGs, a manifest.json, and the built .gtheme — ready to PR into downloads/assets/<id>/.

Drop a .gtheme (GAPP container) to inspect its entries and download the raw files.

Choose .gtheme No file

Preview

View

Display

About this tool

Produces a .gtheme file matching gbt asset pack output.

Copy to /mnt/ghostesp/themes/<id>.gtheme on SD, then select in Settings › Appearance.

All processing is local — nothing is uploaded.