feat: introduce theme management and performance improvements (#7)

This commit is contained in:
Karol Broda
2025-12-24 10:49:03 +01:00
committed by Karol Broda
parent 9b09ee7c6c
commit 933da8bad2
20 changed files with 877 additions and 172 deletions

24
internal/theme/ansi.go Normal file
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package theme
// ANSI palette uses standard terminal colors (0-15)
// this allows the theme to inherit from the user's terminal color scheme
var paletteANSI = Palette{
Name: "ansi",
Fg: "15", // bright white
FgMuted: "7", // white
FgSubtle: "8", // bright black (gray)
Bg: "0", // black
BgMuted: "0", // black
Border: "8", // bright black (gray)
Red: "1", // red
Green: "2", // green
Yellow: "3", // yellow
Blue: "4", // blue
Magenta: "5", // magenta
Cyan: "6", // cyan
Orange: "3", // yellow (ansi has no orange, fallback to yellow)
Gray: "8", // bright black
}

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package theme
// catppuccin mocha (dark)
// https://github.com/catppuccin/catppuccin
var paletteCatppuccinMocha = Palette{
Name: "catppuccin-mocha",
Fg: "#cdd6f4", // text
FgMuted: "#a6adc8", // subtext0
FgSubtle: "#6c7086", // overlay0
Bg: "#1e1e2e", // base
BgMuted: "#313244", // surface0
Border: "#45475a", // surface1
Red: "#f38ba8",
Green: "#a6e3a1",
Yellow: "#f9e2af",
Blue: "#89b4fa",
Magenta: "#cba6f7", // mauve
Cyan: "#94e2d5", // teal
Orange: "#fab387", // peach
Gray: "#585b70", // surface2
}
// catppuccin macchiato (medium-dark)
var paletteCatppuccinMacchiato = Palette{
Name: "catppuccin-macchiato",
Fg: "#cad3f5", // text
FgMuted: "#a5adcb", // subtext0
FgSubtle: "#6e738d", // overlay0
Bg: "#24273a", // base
BgMuted: "#363a4f", // surface0
Border: "#494d64", // surface1
Red: "#ed8796",
Green: "#a6da95",
Yellow: "#eed49f",
Blue: "#8aadf4",
Magenta: "#c6a0f6", // mauve
Cyan: "#8bd5ca", // teal
Orange: "#f5a97f", // peach
Gray: "#5b6078", // surface2
}
// catppuccin frappe (medium)
var paletteCatppuccinFrappe = Palette{
Name: "catppuccin-frappe",
Fg: "#c6d0f5", // text
FgMuted: "#a5adce", // subtext0
FgSubtle: "#737994", // overlay0
Bg: "#303446", // base
BgMuted: "#414559", // surface0
Border: "#51576d", // surface1
Red: "#e78284",
Green: "#a6d189",
Yellow: "#e5c890",
Blue: "#8caaee",
Magenta: "#ca9ee6", // mauve
Cyan: "#81c8be", // teal
Orange: "#ef9f76", // peach
Gray: "#626880", // surface2
}
// catppuccin latte (light)
var paletteCatppuccinLatte = Palette{
Name: "catppuccin-latte",
Fg: "#4c4f69", // text
FgMuted: "#6c6f85", // subtext0
FgSubtle: "#9ca0b0", // overlay0
Bg: "#eff1f5", // base
BgMuted: "#ccd0da", // surface0
Border: "#bcc0cc", // surface1
Red: "#d20f39",
Green: "#40a02b",
Yellow: "#df8e1d",
Blue: "#1e66f5",
Magenta: "#8839ef", // mauve
Cyan: "#179299", // teal
Orange: "#fe640b", // peach
Gray: "#acb0be", // surface2
}

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internal/theme/dracula.go Normal file
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package theme
// dracula theme
// https://draculatheme.com/
var paletteDracula = Palette{
Name: "dracula",
Fg: "#f8f8f2", // foreground
FgMuted: "#f8f8f2", // foreground
FgSubtle: "#6272a4", // comment
Bg: "#282a36", // background
BgMuted: "#44475a", // selection
Border: "#44475a", // selection
Red: "#ff5555",
Green: "#50fa7b",
Yellow: "#f1fa8c",
Blue: "#6272a4", // dracula uses comment color for blue tones
Magenta: "#bd93f9", // purple
Cyan: "#8be9fd",
Orange: "#ffb86c",
Gray: "#6272a4", // comment
}

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internal/theme/gruvbox.go Normal file
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package theme
// gruvbox dark
// https://github.com/morhetz/gruvbox
var paletteGruvboxDark = Palette{
Name: "gruvbox-dark",
Fg: "#ebdbb2", // fg
FgMuted: "#d5c4a1", // fg2
FgSubtle: "#a89984", // fg4
Bg: "#282828", // bg
BgMuted: "#3c3836", // bg1
Border: "#504945", // bg2
Red: "#fb4934",
Green: "#b8bb26",
Yellow: "#fabd2f",
Blue: "#83a598",
Magenta: "#d3869b", // purple
Cyan: "#8ec07c", // aqua
Orange: "#fe8019",
Gray: "#928374",
}
// gruvbox light
var paletteGruvboxLight = Palette{
Name: "gruvbox-light",
Fg: "#3c3836", // fg
FgMuted: "#504945", // fg2
FgSubtle: "#7c6f64", // fg4
Bg: "#fbf1c7", // bg
BgMuted: "#ebdbb2", // bg1
Border: "#d5c4a1", // bg2
Red: "#cc241d",
Green: "#98971a",
Yellow: "#d79921",
Blue: "#458588",
Magenta: "#b16286", // purple
Cyan: "#689d6a", // aqua
Orange: "#d65d0e",
Gray: "#928374",
}

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internal/theme/mono.go Normal file
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package theme
import "github.com/charmbracelet/lipgloss"
// createMonoTheme creates a monochrome theme (no colors)
// useful for accessibility, piping output, or minimal terminals
func createMonoTheme() *Theme {
baseStyle := lipgloss.NewStyle()
boldStyle := lipgloss.NewStyle().Bold(true)
return &Theme{
Name: "mono",
Styles: Styles{
Header: boldStyle,
Border: baseStyle,
Selected: boldStyle,
Watched: boldStyle,
Normal: baseStyle,
Error: boldStyle,
Success: boldStyle,
Warning: boldStyle,
Footer: baseStyle,
Background: baseStyle,
Proto: ProtoStyles{
TCP: baseStyle,
UDP: baseStyle,
Unix: baseStyle,
TCP6: baseStyle,
UDP6: baseStyle,
},
State: StateStyles{
Listen: baseStyle,
Established: baseStyle,
TimeWait: baseStyle,
CloseWait: baseStyle,
SynSent: baseStyle,
SynRecv: baseStyle,
FinWait1: baseStyle,
FinWait2: baseStyle,
Closing: baseStyle,
LastAck: baseStyle,
Closed: baseStyle,
},
},
}
}

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internal/theme/nord.go Normal file
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package theme
// nord theme
// https://www.nordtheme.com/
var paletteNord = Palette{
Name: "nord",
Fg: "#eceff4", // snow storm - nord6
FgMuted: "#d8dee9", // snow storm - nord4
FgSubtle: "#4c566a", // polar night - nord3
Bg: "#2e3440", // polar night - nord0
BgMuted: "#3b4252", // polar night - nord1
Border: "#434c5e", // polar night - nord2
Red: "#bf616a", // aurora - nord11
Green: "#a3be8c", // aurora - nord14
Yellow: "#ebcb8b", // aurora - nord13
Blue: "#81a1c1", // frost - nord9
Magenta: "#b48ead", // aurora - nord15
Cyan: "#88c0d0", // frost - nord8
Orange: "#d08770", // aurora - nord12
Gray: "#4c566a", // polar night - nord3
}

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package theme
// one dark theme (atom editor)
// https://github.com/atom/atom/tree/master/packages/one-dark-syntax
var paletteOneDark = Palette{
Name: "one-dark",
Fg: "#abb2bf", // foreground
FgMuted: "#9da5b4", // foreground muted
FgSubtle: "#5c6370", // comment
Bg: "#282c34", // background
BgMuted: "#21252b", // gutter background
Border: "#3e4451", // selection
Red: "#e06c75",
Green: "#98c379",
Yellow: "#e5c07b",
Blue: "#61afef",
Magenta: "#c678dd", // purple
Cyan: "#56b6c2",
Orange: "#d19a66",
Gray: "#5c6370", // comment
}

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internal/theme/palette.go Normal file
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package theme
import (
"strconv"
"github.com/charmbracelet/lipgloss"
)
// Palette defines the semantic colors for a theme
type Palette struct {
Name string
// base colors
Fg string // primary foreground
FgMuted string // secondary/muted foreground
FgSubtle string // subtle/disabled foreground
Bg string // primary background
BgMuted string // secondary background (selections, highlights)
Border string // border color
// semantic colors
Red string
Green string
Yellow string
Blue string
Magenta string
Cyan string
Orange string
Gray string
}
// Color converts a palette color string to a lipgloss.TerminalColor.
// If the string is 1-2 characters, it's treated as an ANSI color code.
// Otherwise, it's treated as a hex color.
func (p *Palette) Color(c string) lipgloss.TerminalColor {
if c == "" {
return lipgloss.NoColor{}
}
if len(c) <= 2 {
n, err := strconv.Atoi(c)
if err == nil {
return lipgloss.ANSIColor(n)
}
}
return lipgloss.Color(c)
}
// ToTheme converts a Palette to a Theme with lipgloss styles
func (p *Palette) ToTheme() *Theme {
return &Theme{
Name: p.Name,
Styles: Styles{
Header: lipgloss.NewStyle().
Bold(true).
Foreground(p.Color(p.Fg)),
Border: lipgloss.NewStyle().
Foreground(p.Color(p.Border)),
Selected: lipgloss.NewStyle().
Bold(true).
Foreground(p.Color(p.Fg)),
Watched: lipgloss.NewStyle().
Bold(true).
Foreground(p.Color(p.Orange)),
Normal: lipgloss.NewStyle().
Foreground(p.Color(p.FgMuted)),
Error: lipgloss.NewStyle().
Foreground(p.Color(p.Red)),
Success: lipgloss.NewStyle().
Foreground(p.Color(p.Green)),
Warning: lipgloss.NewStyle().
Foreground(p.Color(p.Yellow)),
Footer: lipgloss.NewStyle().
Foreground(p.Color(p.FgSubtle)),
Background: lipgloss.NewStyle(),
Proto: ProtoStyles{
TCP: lipgloss.NewStyle().Foreground(p.Color(p.Green)),
UDP: lipgloss.NewStyle().Foreground(p.Color(p.Magenta)),
Unix: lipgloss.NewStyle().Foreground(p.Color(p.Gray)),
TCP6: lipgloss.NewStyle().Foreground(p.Color(p.Cyan)),
UDP6: lipgloss.NewStyle().Foreground(p.Color(p.Blue)),
},
State: StateStyles{
Listen: lipgloss.NewStyle().Foreground(p.Color(p.Green)),
Established: lipgloss.NewStyle().Foreground(p.Color(p.Blue)),
TimeWait: lipgloss.NewStyle().Foreground(p.Color(p.Yellow)),
CloseWait: lipgloss.NewStyle().Foreground(p.Color(p.Orange)),
SynSent: lipgloss.NewStyle().Foreground(p.Color(p.Magenta)),
SynRecv: lipgloss.NewStyle().Foreground(p.Color(p.Magenta)),
FinWait1: lipgloss.NewStyle().Foreground(p.Color(p.Red)),
FinWait2: lipgloss.NewStyle().Foreground(p.Color(p.Red)),
Closing: lipgloss.NewStyle().Foreground(p.Color(p.Red)),
LastAck: lipgloss.NewStyle().Foreground(p.Color(p.Red)),
Closed: lipgloss.NewStyle().Foreground(p.Color(p.Gray)),
},
},
}
}

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internal/theme/readme.md Normal file
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# theme Palettes
the color palettes in this directory were generated by an LLM agent (Claude Opus 4.5) using web search to fetch the official color specifications from each themes documentation
as it is with llm agents its possible the colors may be wrong
Sources:
- [Catppuccin](https://github.com/catppuccin/catppuccin)
- [Dracula](https://draculatheme.com/)
- [Gruvbox](https://github.com/morhetz/gruvbox)
- [Nord](https://www.nordtheme.com/)
- [One Dark](https://github.com/atom/one-dark-syntax)
- [Solarized](https://ethanschoonover.com/solarized/)
- [Tokyo Night](https://github.com/enkia/tokyo-night-vscode-theme)

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package theme
// solarized dark theme
// https://ethanschoonover.com/solarized/
var paletteSolarizedDark = Palette{
Name: "solarized-dark",
Fg: "#839496", // base0
FgMuted: "#93a1a1", // base1
FgSubtle: "#586e75", // base01
Bg: "#002b36", // base03
BgMuted: "#073642", // base02
Border: "#073642", // base02
Red: "#dc322f",
Green: "#859900",
Yellow: "#b58900",
Blue: "#268bd2",
Magenta: "#d33682",
Cyan: "#2aa198",
Orange: "#cb4b16",
Gray: "#657b83", // base00
}
// solarized light theme
var paletteSolarizedLight = Palette{
Name: "solarized-light",
Fg: "#657b83", // base00
FgMuted: "#586e75", // base01
FgSubtle: "#93a1a1", // base1
Bg: "#fdf6e3", // base3
BgMuted: "#eee8d5", // base2
Border: "#eee8d5", // base2
Red: "#dc322f",
Green: "#859900",
Yellow: "#b58900",
Blue: "#268bd2",
Magenta: "#d33682",
Cyan: "#2aa198",
Orange: "#cb4b16",
Gray: "#839496", // base0
}

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package theme
import (
"sort"
"strings"
"github.com/charmbracelet/lipgloss"
@@ -52,152 +53,73 @@ type StateStyles struct {
Closed lipgloss.Style
}
var (
themes map[string]*Theme
)
var themes map[string]*Theme
func init() {
themes = map[string]*Theme{
"default": createAdaptiveTheme(),
"mono": createMonoTheme(),
}
themes = make(map[string]*Theme)
// ansi theme (default) - inherits from terminal colors
themes["ansi"] = paletteANSI.ToTheme()
// catppuccin variants
themes["catppuccin-mocha"] = paletteCatppuccinMocha.ToTheme()
themes["catppuccin-macchiato"] = paletteCatppuccinMacchiato.ToTheme()
themes["catppuccin-frappe"] = paletteCatppuccinFrappe.ToTheme()
themes["catppuccin-latte"] = paletteCatppuccinLatte.ToTheme()
// gruvbox variants
themes["gruvbox-dark"] = paletteGruvboxDark.ToTheme()
themes["gruvbox-light"] = paletteGruvboxLight.ToTheme()
// dracula
themes["dracula"] = paletteDracula.ToTheme()
// nord
themes["nord"] = paletteNord.ToTheme()
// tokyo night variants
themes["tokyo-night"] = paletteTokyoNight.ToTheme()
themes["tokyo-night-storm"] = paletteTokyoNightStorm.ToTheme()
themes["tokyo-night-light"] = paletteTokyoNightLight.ToTheme()
// solarized variants
themes["solarized-dark"] = paletteSolarizedDark.ToTheme()
themes["solarized-light"] = paletteSolarizedLight.ToTheme()
// one dark
themes["one-dark"] = paletteOneDark.ToTheme()
// monochrome (no colors)
themes["mono"] = createMonoTheme()
}
// GetTheme returns a theme by name, with auto-detection support
// DefaultTheme is the theme used when none is specified
const DefaultTheme = "ansi"
// GetTheme returns a theme by name
func GetTheme(name string) *Theme {
if name == "auto" {
// lipgloss handles adaptive colors, so we just return the default
return themes["default"]
if name == "" || name == "auto" || name == "default" {
return themes[DefaultTheme]
}
if theme, exists := themes[name]; exists {
return theme
}
// a specific theme was requested (e.g. "dark", "light"), but we now use adaptive
// so we can just return the default theme and lipgloss will handle it
if name == "dark" || name == "light" {
return themes["default"]
}
// fallback to default
return themes["default"]
return themes[DefaultTheme]
}
// ListThemes returns available theme names
// ListThemes returns available theme names sorted alphabetically
func ListThemes() []string {
var names []string
names := make([]string, 0, len(themes))
for name := range themes {
names = append(names, name)
}
sort.Strings(names)
return names
}
// createAdaptiveTheme creates a clean, minimal theme
func createAdaptiveTheme() *Theme {
return &Theme{
Name: "default",
Styles: Styles{
Header: lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.AdaptiveColor{Light: "#1F2937", Dark: "#F9FAFB"}),
Watched: lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.AdaptiveColor{Light: "#D97706", Dark: "#F59E0B"}),
Border: lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#D1D5DB", Dark: "#374151"}),
Selected: lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.AdaptiveColor{Light: "#1F2937", Dark: "#F9FAFB"}),
Normal: lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#6B7280", Dark: "#9CA3AF"}),
Error: lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#DC2626", Dark: "#F87171"}),
Success: lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#059669", Dark: "#34D399"}),
Warning: lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#D97706", Dark: "#FBBF24"}),
Footer: lipgloss.NewStyle().
Foreground(lipgloss.AdaptiveColor{Light: "#9CA3AF", Dark: "#6B7280"}),
Background: lipgloss.NewStyle(),
Proto: ProtoStyles{
TCP: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#059669", Dark: "#34D399"}),
UDP: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#7C3AED", Dark: "#A78BFA"}),
Unix: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#6B7280", Dark: "#9CA3AF"}),
TCP6: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#059669", Dark: "#34D399"}),
UDP6: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#7C3AED", Dark: "#A78BFA"}),
},
State: StateStyles{
Listen: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#059669", Dark: "#34D399"}),
Established: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#2563EB", Dark: "#60A5FA"}),
TimeWait: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#D97706", Dark: "#FBBF24"}),
CloseWait: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#D97706", Dark: "#FBBF24"}),
SynSent: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#7C3AED", Dark: "#A78BFA"}),
SynRecv: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#7C3AED", Dark: "#A78BFA"}),
FinWait1: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#DC2626", Dark: "#F87171"}),
FinWait2: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#DC2626", Dark: "#F87171"}),
Closing: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#DC2626", Dark: "#F87171"}),
LastAck: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#DC2626", Dark: "#F87171"}),
Closed: lipgloss.NewStyle().Foreground(lipgloss.AdaptiveColor{Light: "#9CA3AF", Dark: "#6B7280"}),
},
},
}
}
// createMonoTheme creates a monochrome theme (no colors)
func createMonoTheme() *Theme {
baseStyle := lipgloss.NewStyle()
boldStyle := lipgloss.NewStyle().Bold(true)
return &Theme{
Name: "mono",
Styles: Styles{
Header: boldStyle,
Border: baseStyle,
Selected: boldStyle,
Normal: baseStyle,
Error: boldStyle,
Success: boldStyle,
Warning: boldStyle,
Footer: baseStyle,
Background: baseStyle,
Proto: ProtoStyles{
TCP: baseStyle,
UDP: baseStyle,
Unix: baseStyle,
TCP6: baseStyle,
UDP6: baseStyle,
},
State: StateStyles{
Listen: baseStyle,
Established: baseStyle,
TimeWait: baseStyle,
CloseWait: baseStyle,
SynSent: baseStyle,
SynRecv: baseStyle,
FinWait1: baseStyle,
FinWait2: baseStyle,
Closing: baseStyle,
LastAck: baseStyle,
Closed: baseStyle,
},
},
}
}
// GetProtoStyle returns the appropriate style for a protocol
func (s *Styles) GetProtoStyle(proto string) lipgloss.Style {
switch strings.ToLower(proto) {

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package theme
// tokyo night theme
// https://github.com/enkia/tokyo-night-vscode-theme
var paletteTokyoNight = Palette{
Name: "tokyo-night",
Fg: "#c0caf5", // foreground
FgMuted: "#a9b1d6", // foreground dark
FgSubtle: "#565f89", // comment
Bg: "#1a1b26", // background
BgMuted: "#24283b", // background highlight
Border: "#414868", // border
Red: "#f7768e",
Green: "#9ece6a",
Yellow: "#e0af68",
Blue: "#7aa2f7",
Magenta: "#bb9af7", // purple
Cyan: "#7dcfff",
Orange: "#ff9e64",
Gray: "#565f89", // comment
}
// tokyo night storm variant
var paletteTokyoNightStorm = Palette{
Name: "tokyo-night-storm",
Fg: "#c0caf5", // foreground
FgMuted: "#a9b1d6", // foreground dark
FgSubtle: "#565f89", // comment
Bg: "#24283b", // background (storm is slightly lighter)
BgMuted: "#1f2335", // background dark
Border: "#414868", // border
Red: "#f7768e",
Green: "#9ece6a",
Yellow: "#e0af68",
Blue: "#7aa2f7",
Magenta: "#bb9af7", // purple
Cyan: "#7dcfff",
Orange: "#ff9e64",
Gray: "#565f89", // comment
}
// tokyo night light variant
var paletteTokyoNightLight = Palette{
Name: "tokyo-night-light",
Fg: "#343b58", // foreground
FgMuted: "#565a6e", // foreground dark
FgSubtle: "#9699a3", // comment
Bg: "#d5d6db", // background
BgMuted: "#cbccd1", // background highlight
Border: "#b4b5b9", // border
Red: "#8c4351",
Green: "#485e30",
Yellow: "#8f5e15",
Blue: "#34548a",
Magenta: "#5a4a78", // purple
Cyan: "#0f4b6e",
Orange: "#965027",
Gray: "#9699a3", // comment
}