theme

type Entry struct {
	Name string
	Dark bool
	User bool // a file in the themes directory
}

type Palette struct {
	Name       string
	ANSI       [16]color.Color
	Background color.Color
	Foreground color.Color
	Selection  color.Color // may be nil
	Dark       bool
	File       string // the file it came from; empty for built-ins
}

type Theme struct {
	Indicator    lipgloss.Style // mode indicator, top right
	Recording    lipgloss.Style // the REC chip beside the mode indicator while a macro is recorded
	Header       lipgloss.Style // column letters, row numbers and the name box
	HeaderActive lipgloss.Style // header of the focused row and column
	HeaderSel    lipgloss.Style // headers of selected rows and columns
	HeaderHover  lipgloss.Style // a header under the mouse
	Handle       lipgloss.Style // a column resize handle being hovered or dragged
	Pointer      lipgloss.Style // the cell pointer
	Selection    lipgloss.Style // a range being pointed at
	Hint         lipgloss.Style // guidance on the context line
	Warning      lipgloss.Style // recoverable problems, e.g. a formula error
	Error        lipgloss.Style // ERROR mode message
	Muted        lipgloss.Style // secondary text: key hints, file lists
	Key          lipgloss.Style // emphasized text in the status line, e.g. a range
	KeyChip      lipgloss.Style // a key cap in hints, menus and the palette, e.g. " Enter "
	ErrorCell    lipgloss.Style // cells whose value is ERR or NA
	// ErrorMark is layered on an error's text, so errors show beyond
	// color: a curly underline, in the error color where the terminal
	// supports colored underlines.
	ErrorMark    lipgloss.Style
	Link         lipgloss.Style // a cell's URL or HYPERLINK label, layered on the cell's role
	Found        lipgloss.Style // cells matching an open search
	Traced       lipgloss.Style // precedents or dependents being traced
	Argument     lipgloss.Style // the argument at the caret in a function's signature
	Progress     lipgloss.Style // the done part of an import's progress bar
	ProgressTodo lipgloss.Style // the rest of the progress bar
	// Copied marks the range on the clipboard, like Sheets' dashed border:
	// a dashed underline across every cell, layered on the cell's own
	// style, with its own text color where the cell has none.
	Copied lipgloss.Style
	// FrozenLine divides frozen rows and columns from the scrolling ones,
	// like a tmux pane border.
	FrozenLine lipgloss.Style
	// Sheet tabs on the status line, like lazygit's panel tabs: plain
	// names (so they don't read as key chips), the sheet shown in the
	// accent and bold, and a tab under the mouse, or where a dragged tab
	// would go, bold and underlined.
	Tab       lipgloss.Style
	TabActive lipgloss.Style
	TabHover  lipgloss.Style
	// FilterOn is the filter mark in the header of a column whose filter
	// hides something (the mark itself also changes, from ▾ to ▼).
	FilterOn lipgloss.Style

	// Chrome: the menu bar, dropdowns, the palette and dialogs.
	MenuBar           lipgloss.Style // menu bar titles
	MenuAccel         lipgloss.Style // a title's accelerator letter
	MenuSelected      lipgloss.Style // open title, highlighted item
	MenuAccelSelected lipgloss.Style // accelerator letter of the open title
	Border            lipgloss.Style // box borders and separators
	Title             lipgloss.Style // box titles and group headings
	Disabled          lipgloss.Style // items that can't run right now
	Match             lipgloss.Style // characters matched by a search
	MatchSelected     lipgloss.Style // matched characters in the highlighted row
	Cell              lipgloss.Style // an ordinary cell: the base for bold, italic and underline

	// Bars: full-width bands behind the menu bar, formula bar, context
	// line, column headers and status line. Each line is drawn on its
	// role's background, with its foreground for text that has none, out
	// to the terminal's edge; an empty role leaves the line as it is.
	MenuBarRow      lipgloss.Style
	FormulaBarRow   lipgloss.Style
	ContextRow      lipgloss.Style
	ColumnHeaderRow lipgloss.Style
	StatusBarRow    lipgloss.Style
	RowHeader       lipgloss.Style // row numbers not focused, selected or hovered
	// Screen is the background and default text color of the whole
	// screen. Empty in the terminal theme, so the terminal's own show.
	Screen lipgloss.Style

	// Name is the theme's name, and Palette its colors: nil for the
	// terminal theme, whose colors only the terminal knows.
	Name    string
	Palette *Palette

	// Charts: see charts.go in package ui.
	ChartFrame    lipgloss.Style // a chart's border
	ChartSelected lipgloss.Style // the border of the selected chart and its resize handle
	ChartAxis     lipgloss.Style // axis lines and tick marks
	ChartLabel    lipgloss.Style // tick values, category labels and legend text
	// Series colors bars, lines, slices and legend swatches, in order;
	// SeriesBg is the same colors as backgrounds, for the lower half of a
	// pie's half blocks. SeriesANSI is the ANSI index of each, so images
	// can use the terminal's own colors.
	Series     [chart.Colors]lipgloss.Style
	SeriesBg   [chart.Colors]lipgloss.Style
	SeriesANSI [chart.Colors]int
}