Module color 

Color conversion between cotis and wgpu representations.

Cotis cotis_defaults::colors::Color stores each channel as f32 in the 0..=255 range. This module normalizes channels to 0.0..=1.0 for GPU use.

Alpha handling differs by consumer:

• cotis_color_to_ui_color — RGB only; used by the UI geometry pipeline, which forces opaque fragments in the WGSL shader.
• cotis_color_to_wgpu — full RGBA; suitable for swapchain clear colors and crate::renderer::CotisWgpuRenderer::set_background.
• Text rendering converts cotis colors to glyphon Color with rounded u8 channels, preserving alpha.

Functions

cotis_color_to_ui_color

Converts a cotis RGBA color (0..255 per channel) into normalized GPU color components.

cotis_color_to_wgpu

Converts a cotis RGBA color into a wgpu clear/present color (0.0..=1.0 per channel).