Summary
The macOS DMG currently uses the default installer presentation. This issue proposes supporting a branded Finder drag-and-drop window for the desktop installer.
Proof of concept
I prepared a working proof of concept in the accompanying PR. It adds a small, configurable DMG visual system with three sample backgrounds and keeps the asset selection out of the packaging implementation.
The artwork in this PR is intentionally placeholder/proof-of-concept material. The project team can replace it with any official T3 Code artwork, copy, typography, or brand treatment before merging.
Why this is useful
A polished DMG window gives first-time desktop users a clearer installation path and makes the installer feel like part of the product rather than a generic packaging artifact.
Scope of the proposed change
- Configure the DMG Finder window size and application/Applications placement.
- Allow the background asset to be selected through a build option.
- Keep the visual asset replaceable without changing packaging logic.
- Include focused tests for the generated electron-builder configuration.
The custom image is implemented using electron-builder's supported DMG background configuration; Finder will keep its normal DMG metadata files hidden when hidden files are not enabled.
Summary
The macOS DMG currently uses the default installer presentation. This issue proposes supporting a branded Finder drag-and-drop window for the desktop installer.
Proof of concept
I prepared a working proof of concept in the accompanying PR. It adds a small, configurable DMG visual system with three sample backgrounds and keeps the asset selection out of the packaging implementation.
The artwork in this PR is intentionally placeholder/proof-of-concept material. The project team can replace it with any official T3 Code artwork, copy, typography, or brand treatment before merging.
Why this is useful
A polished DMG window gives first-time desktop users a clearer installation path and makes the installer feel like part of the product rather than a generic packaging artifact.
Scope of the proposed change
The custom image is implemented using electron-builder's supported DMG background configuration; Finder will keep its normal DMG metadata files hidden when hidden files are not enabled.