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Add Dark mode for a screen beside the bed, with every colour in one table (0.2.63)

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Dark mode is a new switch under Brightness on the screen's settings page, in
the Screen settings of ESP Screens and as switch.<screen>_dark_mode in Home
Assistant, so an automation can turn it on at bedtime. The screen changes
look at once, open cards and an alert included, and keeps it after a
restart. The design stays the same: a black page, graphite cards with a
hairline, soft white text, Home Assistant's state colours where they tell
something, and pastel card colours as deeper versions of themselves.

Every colour the firmware chooses now lives in components/smart_display/
theme.h: roles with a light and a dark value, the named card colours and
Home Assistant's state colours. The board profiles give widgets colourless
shared styles that theme.h fills, so a change of look refills those styles
and draws again what code painted by state. The light look is unchanged
apart from merges below one panel step. Dark mode costs 440 bytes of static
RAM on the CYD, and the LVGL tree of the host build is 416 bytes smaller; tests
keep colours out of every other file.

Comparing a screen that switched looks with one that booted in it also
found two older bugs, now fixed: a settings switch that was on showed its
knob at the left whenever its page was drawn, and the sun card's sunlit
area turned orange after a palette change. Firmware 0.2.54.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Max Gramser
2026-09-17 12:07:03 +02:00
parent 8971ab07e1
commit bc2a754706
40 changed files with 1885 additions and 1363 deletions
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README_EXTENDED.md
+5 -4
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@@ -74,11 +74,12 @@ on the screen itself, and how updates work.
(open/closed), the alarm, who's home, or when something or someone last
changed ("5 min ago", "Yesterday"). See [Top bar](#top-bar).
- **Screen settings:** standby time, normal and dimmed brightness,
night hours, 24- or 12-hour clock, return to the home page, and optional swiping
between pages. Change them in ESP Screens, where they apply at once, or on the screen
night hours, **Dark mode** (firmware 0.2.54+), 24- or 12-hour clock, return to the home page,
and optional swiping between pages. Change them in ESP Screens, where they apply at once, or on the screen
itself. With firmware 0.2.49+ the screen keeps them, and every one of them is also an
entity in Home Assistant, so an automation can switch **Night mode** or **Auto standby**
(firmware 0.2.41+), for example to keep a screen on while someone is home, and
(firmware 0.2.41+), for example to keep a screen on while someone is home, turn **Dark mode**
on at bedtime (firmware 0.2.54+), and
wake a screen or put it to sleep with its **Wake** and **Sleep** buttons (firmware 0.2.45+).
See [Wake and sleep](#wake-and-sleep-from-an-automation).
- **Settings on the screen itself** (firmware 0.2.44+): hold the top bar for about a
@@ -313,7 +314,7 @@ Home Assistant, `esphome.<screen>_open_settings` opens it too (`page` 0 menu, 1
| Group | What is on it |
|---|---|
| Brightness | Brightness, Auto standby, Standby after, Standby brightness |
| Brightness | Brightness, Dark mode, Auto standby, Standby after, Standby brightness |
| Night | Night mode, Starts, Ends, Night brightness |
| Screen | 12/24-hour clock, back to page 1 by itself and after how long, also on standby, swiping between pages, rotation (boards that turn) |
| This screen | Name, IP address, firmware version, Home Assistant connected, Restart |