White balance presets (daylight, cloudy, tungsten, shade)

[erik-sutton95]

Add standard white-balance presets (sun, cloudy, shade, tungsten, fluorescent, …) next to Auto and Custom Kelvin.

Related: Shooting modes · roadmap index

What already exists

• WhiteBalanceMode.auto = 0x00, .custom = 0x06 only
• SET 0x02/0x2C, 5-byte [mode][K/100 u16-LE][tint i16-LE], Kelvin 2000–10000, tint −100…+100
• No GET — read cam_image_effect @4–8
• UI: Auto / Custom + Kelvin drum (stride 100) + tint pad

Mimo named presets, if they exist, may use other first-bytes than 00/06. Those are not tabled. Do not invent them.

Workstreams

1. Operator shortcuts (no new opcode — ship first)

Map names to Custom Kelvin (+ tint 0), same SET we already send:

Preset	Starting Kelvin (adjust if a labeled take says otherwise)
Daylight / Sun	5600 K
Cloudy	6000 K
Shade	7000 K
Tungsten	3200 K
Fluorescent	4000 K
Flash	5500 K

• Rows in the WB sheet above the Kelvin drum
• Selecting a preset writes Custom, not a fake mode byte
• Selecting the drum after a preset stays Custom (expected)

2. Capture named modes (only if Mimo does more)

• Labeled WB preset take on Pocket 4 Pro
• If first-byte ≠ 06, table it and then expose real camera presets
• AWB lock opcode if it appears

Done when

The WB sheet has the usual stills-camera names, each one a Custom Kelvin write that the camera echoes, and any real Mimo mode bytes are either tabled or documented as unused.

[erik-sutton95]

Tracked as maintainer task #100.