# Nyx - Background - Icons

The background for Nyx must be a 1280 x 720 32-bit BMP. Alpha blending is taken into account. For that reason, if a solid background is required, that value must be 0xFF. There are sites that can produce the correct bmp.

You can now provide section-specific backgrounds by placing any of the following files in `bootloader/res/`:

- `background_about.bmp`
- `background_home.bmp`
- `background_tools.bmp`
- `background_info.bmp`
- `background_options.bmp`

If a section-specific file is missing, Nyx will first try `background_etc.bmp` (shared across every non-Home tab) and then fall back to `background.bmp` when available.

The icons supported are 192 x 192 32-bit BMP. You can utilize transparency at will and make nice mixes with the button background.

Additionally, using the `icon={sd path}`, the icon will get colorized if the name ends in `_hue.bmp`. That only works nicely if the icon is a white layout with transparency.

If `_nobox.bmp` is used then the button background is removed. Useful for icon themes that aim for a specific style.

A combo of both can be enabled via `_hue_nobox.bmp` suffix.

The default system icons (`icon_switch.bmp` and `icon_payload.bmp`) can be replaced with white layouts that have transparency. They can also be replaced with normal icons if the following exist: `icon_switch_custom.bmp` or/and `icon_payload_custom.bmp`


## How to configure

The background must go to /bootloader/res/background.bmp

The icons can be utilized either via `[boot entries names]` -> `boot entries names.bmp` or by using `icon={sd path}` (preferred method), which should point at a bmp.