NewApplicationWindow automatically sets an application icon

application.go

@@ -2,6 +2,7 @@ package nasin
 
 import "log"
 import "image"
+import "strings"
 import "git.tebibyte.media/tomo/tomo"
 import "git.tebibyte.media/tomo/nasin/internal/registrar"
 
@@ -76,6 +77,15 @@ type ApplicationRole string; const (
 	RoleChecklist         ApplicationRole = "Checklist"
 )
 
+// Icon returns the icon ID for this role.
+func (role ApplicationRole) Icon () tomo.Icon {
+	if role == "" {
+		return tomo.IconApplication
+	} else {
+		return tomo.Icon("Application" + strings.ReplaceAll(string(role), " ", ""))
+	}
+}
+
 // RunApplication is like tomo.Run, but runs an application. If something fails
 // to initialize, an error is written to the standard logger.
 func RunApplication (application Application) {
@@ -90,10 +100,37 @@ func RunApplication (application Application) {
 
 // NewApplicationWindow creates a window for an application. It will
 // automatically set window information to signal to the OS that the window is
-// owned by the application.
+// owned by the application. The window's icon will be automatically set by
+// looking for an icon with the name of the application's ID. If that is not
+// found, the default icon for the application's ApplicationRole will used.
 func NewApplicationWindow (application Application, bounds image.Rectangle) (tomo.MainWindow, error) {
 	window, err := tomo.NewWindow(bounds)
 	if err != nil { return nil, err }
-	window.SetTitle(application.Describe().String())
+	description := application.Describe()
+	window.SetTitle(description.Name)
+	setApplicationWindowIcon(window, description)
 	return window, nil
 }
+
+func setApplicationWindowIcon (window tomo.Window, description ApplicationDescription) {
+	allSizes := func (icon tomo.Icon) (sizes []image.Image) {
+		small  := icon.Texture(tomo.IconSizeSmall)
+		medium := icon.Texture(tomo.IconSizeMedium)
+		large  := icon.Texture(tomo.IconSizeLarge)
+		if small  != nil { sizes = append(sizes,  small) }
+		if medium != nil { sizes = append(sizes, medium) }
+		if large  != nil { sizes = append(sizes,  large) }
+		return sizes
+	}
+
+	if sizes := allSizes(tomo.Icon(description.ID)); len(sizes) > 0 {
+		println("direct icon worked", tomo.Icon(description.ID))
+		window.SetIcon(sizes...)
+		return
+	}
+	if sizes := allSizes(description.Role.Icon()); len(sizes) > 0 {
+		println("role icon worked", description.Role.Icon())
+		window.SetIcon(sizes...)
+		return
+	}
+}

examples/clock/main.go

@@ -68,7 +68,8 @@ func NewClockFace () *ClockFace {
 	box := &ClockFace {
 		CanvasBox: tomo.NewCanvasBox(),
 	}
-	tomo.Apply(box, tomo.R("nasin", "ClockFace", ""))
+	box.SetRole(tomo.R("nasin", "ClockFace", ""))
+	tomo.Apply(box)
 	box.SetDrawer(box)
 	return box
 }

examples/icons/main.go

@@ -7,7 +7,7 @@ import "git.tebibyte.media/tomo/nasin"
 import "git.tebibyte.media/tomo/objects"
 import "git.tebibyte.media/tomo/tomo/input"
 import "git.tebibyte.media/tomo/objects/layouts"
-import "git.tebibyte.media/tomo/nasin/internal/theme/xdgicons"
+import "git.tebibyte.media/tomo/nasin/internal/theme/icons/xdg"
 
 const scrollIcons = true
 

go.mod

@@ -3,9 +3,9 @@ module git.tebibyte.media/tomo/nasin
 go 1.20
 
 require (
-	git.tebibyte.media/tomo/objects v0.15.0
-	git.tebibyte.media/tomo/tomo v0.34.0
-	git.tebibyte.media/tomo/x v0.9.0
+	git.tebibyte.media/tomo/backend v0.2.0
+	git.tebibyte.media/tomo/objects v0.16.0
+	git.tebibyte.media/tomo/tomo v0.35.0
 	git.tebibyte.media/tomo/xdg v0.1.0
 	golang.org/x/image v0.11.0
 )
@@ -15,6 +15,6 @@ require (
 	git.tebibyte.media/tomo/xgbkb v1.0.1 // indirect
 	github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 // indirect
 	github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966 // indirect
-	github.com/jezek/xgb v1.1.0 // indirect
-	github.com/jezek/xgbutil v0.0.0-20230603163917-04188eb39cf0 // indirect
+	github.com/jezek/xgb v1.1.1 // indirect
+	github.com/jezek/xgbutil v0.0.0-20231116234834-47f30c120111 // indirect
 )

go.sum

@@ -1,12 +1,12 @@
 git.tebibyte.media/sashakoshka/xgbkb v1.0.0/go.mod h1:pNcE6TRO93vHd6q42SdwLSTTj25L0Yzggz7yLe0JV6Q=
-git.tebibyte.media/tomo/objects v0.15.0 h1:xCrRqOwCz8jDJk/sWw0B1HyrRCJafAuaPWN9nZj8V1U=
-git.tebibyte.media/tomo/objects v0.15.0/go.mod h1:++pM0y/xuzhgmu1RpHTWQlqrmyHLfPEF9ahyrH8Tqvk=
-git.tebibyte.media/tomo/tomo v0.34.0 h1:r5yJPks9rtzdDI2RyAUdqa1qb6BebG0QFe2cTmcFi+0=
-git.tebibyte.media/tomo/tomo v0.34.0/go.mod h1:C9EzepS9wjkTJjnZaPBh22YvVPyA4hbBAJVU20Rdmps=
+git.tebibyte.media/tomo/backend v0.2.0 h1:9vMQxIRnfzyMVGP3wBTz9qoWzSwLcCYzKIogikk05a0=
+git.tebibyte.media/tomo/backend v0.2.0/go.mod h1:os77Uo/YkQ9EmNZK8U1ljsEUkTK36P27dKmp5p8TMeE=
+git.tebibyte.media/tomo/objects v0.16.0 h1:Q/w8yHZepj0ESYtPGvWtXxZXkTU+k03rfPxvoxXU5AQ=
+git.tebibyte.media/tomo/objects v0.16.0/go.mod h1:jRRpraLGpBzwiOv6kl1Ram229BpJZxJaS4eqIhze194=
+git.tebibyte.media/tomo/tomo v0.35.0 h1:1XvcUcWg1rBZXov3KfuX6VfiuBQ2mcJHIslHMLn07no=
+git.tebibyte.media/tomo/tomo v0.35.0/go.mod h1:C9EzepS9wjkTJjnZaPBh22YvVPyA4hbBAJVU20Rdmps=
 git.tebibyte.media/tomo/typeset v0.7.1 h1:aZrsHwCG5ZB4f5CruRFsxLv5ezJUCFUFsQJJso2sXQ8=
 git.tebibyte.media/tomo/typeset v0.7.1/go.mod h1:PwDpSdBF3l/EzoIsa2ME7QffVVajnTHZN6l3MHEGe1g=
-git.tebibyte.media/tomo/x v0.9.0 h1:wMcbK0MOE7ea7wcU2Mgrr86ZprVGLRY2PgOG0vDJR6Y=
-git.tebibyte.media/tomo/x v0.9.0/go.mod h1:OO4PYXhzrh4ZAY12d7bg+l/P4MbkFPu6f+YVXNDRhog=
 git.tebibyte.media/tomo/xdg v0.1.0 h1:6G2WYPPiM2IXleCpKKHuJA34BxumwNWuLsUoX3yu5zA=
 git.tebibyte.media/tomo/xdg v0.1.0/go.mod h1:tuaRwRkyYW7mqlxA7P2+V+e10KzcamNoUzcOgaIYKAY=
 git.tebibyte.media/tomo/xgbkb v1.0.1 h1:b3HDUopjdQp1MZrb5Vpil4bOtk3NnNXtfQW27Blw2kE=
@@ -15,10 +15,12 @@ github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298 h1:1qlsVAQJ
 github.com/BurntSushi/freetype-go v0.0.0-20160129220410-b763ddbfe298/go.mod h1:D+QujdIlUNfa0igpNMk6UIvlb6C252URs4yupRUV4lQ=
 github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966 h1:lTG4HQym5oPKjL7nGs+csTgiDna685ZXjxijkne828g=
 github.com/BurntSushi/graphics-go v0.0.0-20160129215708-b43f31a4a966/go.mod h1:Mid70uvE93zn9wgF92A/r5ixgnvX8Lh68fxp9KQBaI0=
-github.com/jezek/xgb v1.1.0 h1:wnpxJzP1+rkbGclEkmwpVFQWpuE2PUGNUzP8SbfFobk=
 github.com/jezek/xgb v1.1.0/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
-github.com/jezek/xgbutil v0.0.0-20230603163917-04188eb39cf0 h1:Pf/0BAbppEOq4azPH6fnvUX2dycAwZdGkdxFn25j44c=
+github.com/jezek/xgb v1.1.1 h1:bE/r8ZZtSv7l9gk6nU0mYx51aXrvnyb44892TwSaqS4=
+github.com/jezek/xgb v1.1.1/go.mod h1:nrhwO0FX/enq75I7Y7G8iN1ubpSGZEiA3v9e9GyRFlk=
 github.com/jezek/xgbutil v0.0.0-20230603163917-04188eb39cf0/go.mod h1:AHecLyFNy6AN9f/+0AH/h1MI7X1+JL5bmCz4XlVZk7Y=
+github.com/jezek/xgbutil v0.0.0-20231116234834-47f30c120111 h1:cX/mTy4LgFtWqr5dCadtdJ4zdh/KtPco5yFLsliaFyU=
+github.com/jezek/xgbutil v0.0.0-20231116234834-47f30c120111/go.mod h1:AHecLyFNy6AN9f/+0AH/h1MI7X1+JL5bmCz4XlVZk7Y=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=

internal/registrar/registrar_unix.go

@@ -3,13 +3,24 @@ package registrar
 
 import "os"
 import "log"
-import "git.tebibyte.media/tomo/x"
+import "git.tebibyte.media/tomo/backend/x"
 import "git.tebibyte.media/tomo/tomo"
-import "git.tebibyte.media/tomo/nasin/internal/theme/default"
-import "git.tebibyte.media/tomo/nasin/internal/theme/xdgicons"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
+import "git.tebibyte.media/tomo/nasin/internal/theme/icons/xdg"
+import "git.tebibyte.media/tomo/nasin/internal/theme/icons/fallback"
+import "git.tebibyte.media/tomo/nasin/internal/theme/style/fallback"
+import "git.tebibyte.media/tomo/nasin/internal/theme/style/aluminum"
 
 func Init () error {
-	theme := defaultTheme.Theme()
+	var theme *dataTheme.Theme
+	// TODO eventually get rid of this when we make a file format for
+	// storing visual styles
+	if os.Getenv("TOMO_USE_ALUMINUM_STYLE") != "" {
+		theme = aluminumStyle.New()
+	} else {
+		theme = fallbackStyle.New()
+	}
+	theme.IconTheme = fallbackIcons.New()
 	
 	iconThemeName := os.Getenv("TOMO_XDG_ICON_THEME")
 	if iconThemeName != "" {
@@ -22,6 +33,6 @@ func Init () error {
 	}
 	
 	tomo.SetTheme(theme)
-	tomo.Register(1, x.NewBackend)
+	tomo.Register(1, x.New)
 	return nil
 }

internal/theme/icons/fallback/icon.go

@@ -1,4 +1,4 @@
-package defaultTheme
+package fallbackIcons
 
 import "bytes"
 import "image"
@@ -7,6 +7,7 @@ import _ "image/png"
 import "git.tebibyte.media/tomo/tomo"
 import "git.tebibyte.media/tomo/tomo/data"
 import "git.tebibyte.media/tomo/tomo/canvas"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
 //go:embed assets/icons-small.png
 var atlasSmallBytes []byte
@@ -416,6 +417,11 @@ type iconTheme struct {
 	texturesLarge map[tomo.Icon] canvas.Texture
 }
 
+// New creates a new fallback icon theme.
+func New () dataTheme.IconTheme {
+	return new(iconTheme)
+}
+
 func (this *iconTheme) ensure () {
 	if this.texturesSmall != nil { return }
 	this.texturesSmall = generateSource(atlasSmallBytes, 16)

internal/theme/icons/xdg/icon.go

@@ -54,14 +54,14 @@ func (this *iconTheme) xdgIcon (name string, size tomo.IconSize) (canvas.Texture
 	iconFile, err := os.Open(icon.Path)
 	if err != nil {
 		// this failing indicates a broken icon theme
-		log.Println("nasin: icon file '%s' is inaccessible: %v", icon.Path, err)
+		log.Printf("nasin: icon file '%s' is inaccessible: %v\n", icon.Path, err)
 		return nil, false
 	}
 
 	iconImage, _, err := image.Decode(iconFile)
 	if err != nil {
 		// this failing indicates a broken icon theme
-		log.Println("nasin: icon file '%s' is broken: %v", icon.Path, err)
+		log.Printf("nasin: icon file '%s' is broken: %v\n", icon.Path, err)
 		return nil, false
 	}
 

internal/theme/style/aluminum/default.go

@@ -0,0 +1,19 @@
+package aluminumStyle
+
+import "image/color"
+import "git.tebibyte.media/tomo/tomo"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
+
+// New returns Aluminum, a futuristic, bluish-white style.
+func New () *dataTheme.Theme {
+	return &dataTheme.Theme {
+		Colors: map[tomo.Color] color.Color {
+			tomo.ColorBackground: colorBackground,
+			tomo.ColorForeground: colorForeground,
+			tomo.ColorRaised:     colorRaised,
+			tomo.ColorSunken:     colorSunken,
+			tomo.ColorAccent:     colorFocus,
+		},
+		Rules: rules,
+	}
+}

internal/theme/style/aluminum/style.go

@@ -0,0 +1,315 @@
+package aluminumStyle
+
+import "image/color"
+import "git.tebibyte.media/tomo/tomo"
+import "golang.org/x/image/font/basicfont"
+import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
+
+func hex (color uint32) (c color.RGBA) {
+	c.A = uint8(color)
+	c.B = uint8(color >>  8)
+	c.G = uint8(color >> 16)
+	c.R = uint8(color >> 24)
+	return
+}
+
+func border (top, right, bottom, left uint32, width ...int) tomo.Border {
+	return tomo.Border {
+		Width: tomo.I(width...),
+		Color: [4]color.Color {
+			hex(top),    hex(right),
+			hex(bottom), hex(left),
+		},
+	}
+}
+
+var colorDot           = hex(0x7391c080)
+var colorFocus         = hex(0x5f8bc4FF)
+var colorHighlight     = hex(0x5f8bc4FF)
+var colorBackground    = hex(0xd4d4d4FF)
+var colorForeground    = color.Black
+
+var colorOutline       = color.Black
+var colorGutter        = hex(0xbfc6d1FF)
+var colorGutterHovered = hex(0xc5cbd6FF)
+var colorRaised        = hex(0xe9eaeaFF)
+var colorRaisedPressed = hex(0xccd4ddFF)
+var colorRaisedFocused = hex(0xcfd6ddFF)
+var colorRaisedHovered = hex(0xf1f3f5FF)
+var colorSunken        = hex(0xe9eaeaFF)
+var colorSunkenFocused = hex(0xe0e6eeFF)
+var colorSunkenPressed = hex(0xe0e6eeFF)
+
+var outline = tomo.Border {
+	Width: tomo.I(1),
+	Color: [4]color.Color {
+		colorOutline,
+		colorOutline,
+		colorOutline,
+		colorOutline,
+	},
+}
+
+var borderEngraved      = border(0xc3c3c5FF, 0xe3e3e3FF, 0xe9e9e9ff, 0xc2c2c2ff, 1)
+var borderGap           = border(0x697c7cFF, 0x566767FF, 0x566767ff, 0x697c7cff, 1)
+var borderLifted        = border(0xf9fafcFF, 0xc2c8d3FF, 0xa4afc0ff, 0xf5f6f8ff, 1)
+var borderLiftedFocused = border(0xf0f4f9FF, 0xb1bacaFF, 0x9aa6b7ff, 0xe4e9eeff, 1)
+var borderFocused       = border(0x5f8bc4FF, 0x5f8bc4FF, 0x5f8bc4ff, 0x5f8bc4ff, 1)
+var borderInnerShadow   = border(0xa4afc0FF, 0xa4afc0FF, 0xa4afc0ff, 0xa4afc0ff, 1, 0, 0, 1)
+var borderOuterShadow   = border(0xa4afc0FF, 0xa4afc0FF, 0xa4afc0ff, 0xa4afc0ff, 0, 1, 1, 0)
+
+var rules = []dataTheme.Rule {
+	// *.*[*]
+	dataTheme.Rule {
+		Default: dataTheme.AS (
+			dataTheme.AttrFace      { Face:  basicfont.Face7x13    },
+			dataTheme.AttrTextColor { Color: tomo.ColorForeground  },
+			dataTheme.AttrDotColor  { Color: colorDot              },
+			dataTheme.AttrGap       { X: 8, Y: 8                   },
+		),
+	},
+
+	// *.Button[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "Button", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderLifted,
+			},
+			dataTheme.AttrPadding(tomo.I(4, 8)),
+			dataTheme.AttrColor { Color: tomo.ColorRaised },
+		),
+		Pressed: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderInnerShadow,
+			},
+			dataTheme.AttrPadding(tomo.I(5, 8, 4, 9)),
+			dataTheme.AttrColor { Color: colorRaisedPressed },
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderLiftedFocused,
+			},
+			dataTheme.AttrPadding(tomo.I(4, 8)),
+			dataTheme.AttrColor { Color: colorRaisedFocused },
+		),
+		Hovered: dataTheme.AS (
+			dataTheme.AttrColor { Color: colorRaisedHovered },
+		),
+	},
+
+	// *.TextInput[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "TextInput", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderInnerShadow,
+			},
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrPadding(tomo.I(5, 4, 4, 5)),
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderFocused,
+				borderInnerShadow,
+			},
+			dataTheme.AttrColor { Color: colorSunkenFocused },
+		),
+		Pressed: dataTheme.AS (
+			dataTheme.AttrColor { Color: colorSunkenPressed },
+		),
+	},
+
+	// *.TextView[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "TextView", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderInnerShadow,
+			},
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrPadding(tomo.I(8)),
+		),
+	},
+	
+	// *.NumberInput[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "NumberInput", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrGap { },
+		),
+	},
+
+	// *.Container[sunken]
+	dataTheme.Rule {
+		Role: tomo.R("", "Container", "sunken"),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderInnerShadow,
+			},
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrPadding(tomo.I(8)),
+		),
+	},
+
+	// *.Container[outer]
+	dataTheme.Rule {
+		Role: tomo.R("", "Container", "outer"),
+		Default: dataTheme.AS (
+			dataTheme.AttrColor { Color: tomo.ColorBackground },
+			dataTheme.AttrPadding(tomo.I(8)),
+		),
+	},
+
+	// *.Container[menu]
+	dataTheme.Rule {
+		Role: tomo.R("", "Container", "menu"),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderGap,
+				borderLifted,
+			},
+			dataTheme.AttrColor { Color: tomo.ColorBackground },
+			dataTheme.AttrGap { },
+		),
+	},
+
+	// *.Heading[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "Heading", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrAlign { X: tomo.AlignMiddle, Y: tomo.AlignMiddle },
+		),
+	},
+
+	// *.Separator[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "Separator", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+			},
+		),
+	},
+
+	// *.Slider[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "Slider", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderInnerShadow,
+			},
+			dataTheme.AttrColor { Color: colorGutter },
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderFocused,
+				borderInnerShadow,
+			},
+		),
+		Hovered: dataTheme.AS (
+			dataTheme.AttrColor { Color: colorGutterHovered },
+		),
+	},
+	
+	// *.Slider[horizontal]
+	dataTheme.Rule {
+		Role: tomo.R("", "Slider", "horizontal"),
+		Default: dataTheme.AS(dataTheme.AttrMinimumSize { X: 48 }),
+	},
+	
+	// *.Slider[vertical]
+	dataTheme.Rule {
+		Role: tomo.R("", "Slider", "vertical"),
+		Default: dataTheme.AS(dataTheme.AttrMinimumSize { Y: 48 }),
+	},
+
+	// *.SliderHandle[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "SliderHandle", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderOuterShadow,
+				borderGap,
+				borderLifted,
+			},
+			dataTheme.AttrColor { Color: tomo.ColorRaised },
+			dataTheme.AttrMinimumSize { X: 12, Y: 12, },
+		),
+	},
+
+	// *.Checkbox[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "Checkbox", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderGap,
+				borderInnerShadow,
+			},
+			dataTheme.AttrColor { Color: tomo.ColorSunken },
+			dataTheme.AttrPadding(tomo.I(0, 1, 1, 0)),
+			dataTheme.AttrMinimumSize { X: 19, Y: 19 },
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrBorder {
+				borderEngraved,
+				borderFocused,
+				borderInnerShadow,
+			},
+			dataTheme.AttrPadding(tomo.I(0)),
+			dataTheme.AttrColor { Color: colorSunkenFocused },
+		),
+	},
+
+	// *.LabelCheckbox[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "LabelCheckbox", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrGap { X: 8, Y: 8 },
+		),
+	},
+
+	// *.MenuItem[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "MenuItem", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrPadding(tomo.I(4)),
+			dataTheme.AttrGap { X: 4, Y: 4 },
+			dataTheme.AttrColor { Color: color.Transparent },
+		),
+		Hovered: dataTheme.AS (
+			dataTheme.AttrColor { Color: colorDot },
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrColor { Color: colorDot },
+		),
+	},
+
+	// *.File[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "File", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrColor { Color: color.Transparent },
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrColor { Color: colorDot },
+		),
+	},
+}

internal/theme/style/fallback/style.go

@@ -1,4 +1,4 @@
-package defaultTheme
+package fallbackStyle
 
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
@@ -295,4 +295,15 @@ var rules = []dataTheme.Rule {
 			dataTheme.AttrColor { Color: tomo.ColorAccent },
 		),
 	},
+
+	// *.File[*]
+	dataTheme.Rule {
+		Role: tomo.R("", "File", ""),
+		Default: dataTheme.AS (
+			dataTheme.AttrColor { Color: color.Transparent },
+		),
+		Focused: dataTheme.AS (
+			dataTheme.AttrColor { Color: tomo.ColorAccent },
+		),
+	},
 }

internal/theme/style/fallback/wintergreen.go

@@ -1,12 +1,12 @@
-package defaultTheme
+package fallbackStyle
 
 import "image/color"
 import "git.tebibyte.media/tomo/tomo"
 import dataTheme "git.tebibyte.media/tomo/nasin/internal/theme"
 
-// Theme returns Wintergreen, the default Tomo tomo. It is neutral-gray with
-// green and turquoise accents.
-func Theme () *dataTheme.Theme {
+// New returns Wintergreen, the default Tomo tomo. It is neutral-gray with green
+// and turquoise accents.
+func New () *dataTheme.Theme {
 	return &dataTheme.Theme {
 		Colors: map[tomo.Color] color.Color {
 			tomo.ColorBackground: colorBackground,
@@ -16,6 +16,5 @@ func Theme () *dataTheme.Theme {
 			tomo.ColorAccent:     colorFocus,
 		},
 		Rules: rules,
-		IconTheme: &iconTheme { },
 	}
 }

internal/theme/theme.go

@@ -186,10 +186,11 @@ func (this *Theme) setsFor (role tomo.Role) (defaul, hovered, pressed, focused A
 	return defaul, hovered, pressed, focused
 }
 
-func (this *Theme) Apply (object tomo.Object, role tomo.Role) event.Cookie {
+func (this *Theme) Apply (object tomo.Object) event.Cookie {
 	pressed := false
 	hovered := false
-	box := object.GetBox()
+	box  := object.GetBox()
+	role := box.Role()
 
 	defaultSet, hoveredSet, pressedSet, focusedSet := this.setsFor(role)