Struct RendererParams 

pub struct RendererParams<'a> {

    pub window: Arc<Window>,
    pub vsync_mode: VsyncMode,
    pub power_preference: PowerPreference,
    pub window_opacity: f32,
    pub font_family: Option<&'a str>,
    pub font_family_bold: Option<&'a str>,
    pub font_family_italic: Option<&'a str>,
    pub font_family_bold_italic: Option<&'a str>,
    pub font_ranges: &'a [FontRange],
    pub font_size: f32,
    pub enable_text_shaping: bool,
    pub enable_ligatures: bool,
    pub enable_kerning: bool,
    pub font_antialias: bool,
    pub font_hinting: bool,
    pub font_thin_strokes: ThinStrokesMode,
    pub minimum_contrast: f32,
    pub window_padding: f32,
    pub line_spacing: f32,
    pub char_spacing: f32,
    pub scrollbar_position: &'a str,
    pub scrollbar_width: f32,
    pub scrollbar_thumb_color: [f32; 4],
    pub scrollbar_track_color: [f32; 4],
    pub background_color: [u8; 3],
    pub background_image_path: Option<&'a str>,
    pub background_image_enabled: bool,
    pub background_image_mode: BackgroundImageMode,
    pub background_image_opacity: f32,
    pub custom_shader_path: Option<&'a str>,
    pub custom_shader_enabled: bool,
    pub custom_shader_animation: bool,
    pub custom_shader_animation_speed: f32,
    pub custom_shader_full_content: bool,
    pub custom_shader_brightness: f32,
    pub custom_shader_channel_paths: &'a [Option<PathBuf>; 4],
    pub custom_shader_cubemap_path: Option<&'a Path>,
    pub use_background_as_channel0: bool,
    pub image_scaling_mode: ImageScalingMode,
    pub image_preserve_aspect_ratio: bool,
    pub cursor_shader_path: Option<&'a str>,
    pub cursor_shader_enabled: bool,
    pub cursor_shader_animation: bool,
    pub cursor_shader_animation_speed: f32,
}

Bundles all parameters needed by super::Renderer::new().

Grouping the parameters into a struct eliminates the 46-argument function signature (audit finding H4) without changing any behaviour.

Fields

window: Arc<Window>

The winit window that owns the wgpu surface.

vsync_mode: VsyncMode

Vsync presentation mode.

power_preference: PowerPreference

GPU power preference (low-power vs high-performance).

window_opacity: f32

Window opacity (0.0 fully transparent – 1.0 fully opaque).

font_family: Option<&'a str>

Primary font family name (None = system default).

font_family_bold: Option<&'a str>

Bold variant family override.

font_family_italic: Option<&'a str>

Italic variant family override.

font_family_bold_italic: Option<&'a str>

Bold-italic variant family override.

font_ranges: &'a [FontRange]

Additional Unicode ranges and their fallback fonts.

font_size: f32

Font size in points.

enable_text_shaping: bool

Enable HarfBuzz text shaping.

enable_ligatures: bool

Enable OpenType ligatures.

enable_kerning: bool

Enable OpenType kerning.

font_antialias: bool

Enable font anti-aliasing.

font_hinting: bool

Enable font hinting.

font_thin_strokes: ThinStrokesMode

Thin-strokes rendering mode.

minimum_contrast: f32

Minimum contrast ratio between foreground and background.

window_padding: f32

Padding around the terminal content in logical pixels.

line_spacing: f32

Line height multiplier.

char_spacing: f32

Character width multiplier.

scrollbar_position: &'a str

Scrollbar position string (“left”, “right”, “hidden”).

scrollbar_width: f32

Scrollbar width in logical pixels.

scrollbar_thumb_color: [f32; 4]

Scrollbar thumb color [R, G, B, A].

scrollbar_track_color: [f32; 4]

Scrollbar track color [R, G, B, A].

background_color: [u8; 3]

Theme background color [R, G, B].

background_image_path: Option<&'a str>

Optional background image file path.

background_image_enabled: bool

Whether the background image feature is enabled.

background_image_mode: BackgroundImageMode

How the background image is displayed (stretch, tile, etc.).

background_image_opacity: f32

Background image opacity (0.0 – 1.0).

custom_shader_path: Option<&'a str>

Name / path of the custom background shader.

custom_shader_enabled: bool

Whether the custom shader is enabled.

custom_shader_animation: bool

Whether the custom shader is animated.

custom_shader_animation_speed: f32

Animation speed multiplier for the custom shader.

custom_shader_full_content: bool

Whether the shader renders over the full surface (vs. terminal area).

custom_shader_brightness: f32

Brightness multiplier applied to the shader output.

custom_shader_channel_paths: &'a [Option<PathBuf>; 4]

Channel texture paths (iChannel0..3).

custom_shader_cubemap_path: Option<&'a Path>

Cubemap texture path prefix (iCubemap).

use_background_as_channel0: bool

Use the background image as iChannel0.

image_scaling_mode: ImageScalingMode

Scaling filter for inline images (nearest vs linear).

image_preserve_aspect_ratio: bool

Whether to preserve aspect ratio when scaling inline images.

cursor_shader_path: Option<&'a str>

Name / path of the cursor shader.

cursor_shader_enabled: bool

Whether the cursor shader is enabled.

cursor_shader_animation: bool

Whether the cursor shader is animated.

cursor_shader_animation_speed: f32

Animation speed multiplier for the cursor shader.