Change default colors

Focused buttons and fields are now blue.

CHANGELOG

@@ -4,6 +4,7 @@ v1.5.6 (WIP)
 - Draw additional accents when rendering a list divider
 - Update List, Table and TreeView to not handle Tab or Backtab
 - Allow specifying TabbedPanels switcher height
+- Change default colors (focused buttons and fields are now blue)
 - When resetting color with "-" tag, set background color to primitive
 background color, rather than the terminal background color
 

button.go

@@ -4,6 +4,7 @@ import (
 	"sync"
 
 	"github.com/gdamore/tcell/v2"
+	"github.com/lucasb-eyer/go-colorful"
 )
 
 // Button is labeled box that triggers an action when selected.
@@ -35,14 +36,25 @@ type Button struct {
 // NewButton returns a new input field.
 func NewButton(label string) *Button {
 	box := NewBox()
-	box.SetBackgroundColor(Styles.ContrastBackgroundColor)
 	box.SetRect(0, 0, TaggedStringWidth(label)+4, 1)
+	bg := Styles.PrimaryTextColor
+	if bg == tcell.ColorDefault {
+		r, g, b := Styles.InverseTextColor.RGB()
+		c := colorful.Color{R: float64(r) / 255, G: float64(g) / 255, B: float64(b) / 255}
+		_, _, li := c.Hcl()
+		if li < .5 {
+			bg = tcell.ColorWhite.TrueColor()
+		} else {
+			bg = tcell.ColorBlack.TrueColor()
+		}
+	}
+	box.SetBackgroundColor(bg)
 	return &Button{
 		Box:                    box,
 		label:                  []byte(label),
-		labelColor:             Styles.PrimaryTextColor,
-		labelColorFocused:      Styles.InverseTextColor,
-		backgroundColorFocused: Styles.PrimaryTextColor,
+		labelColor:             Styles.InverseTextColor,
+		labelColorFocused:      Styles.PrimaryTextColor,
+		backgroundColorFocused: Styles.ContrastBackgroundColor,
 	}
 }
 

form.go

@@ -151,15 +151,15 @@ func NewForm() *Form {
 		Box:                          box,
 		itemPadding:                  1,
 		labelColor:                   Styles.SecondaryTextColor,
-		fieldBackgroundColor:         Styles.ContrastBackgroundColor,
-		fieldTextColor:               Styles.PrimaryTextColor,
-		fieldTextColorFocused:        Styles.ContrastPrimaryTextColor,
-		buttonBackgroundColor:        Styles.ContrastBackgroundColor,
-		buttonBackgroundColorFocused: Styles.PrimaryTextColor,
-		buttonTextColor:              Styles.PrimaryTextColor,
-		buttonTextColorFocused:       Styles.InverseTextColor,
+		fieldBackgroundColor:         Styles.PrimaryTextColor,
+		fieldBackgroundColorFocused:  Styles.ContrastBackgroundColor,
+		fieldTextColor:               Styles.ContrastPrimaryTextColor,
+		fieldTextColorFocused:        Styles.PrimaryTextColor,
+		buttonBackgroundColor:        Styles.PrimaryTextColor,
+		buttonBackgroundColorFocused: Styles.ContrastBackgroundColor,
+		buttonTextColor:              Styles.InverseTextColor,
+		buttonTextColorFocused:       Styles.PrimaryTextColor,
 		labelColorFocused:            ColorUnset,
-		fieldBackgroundColorFocused:  ColorUnset,
 	}
 
 	f.focus = f

inputfield.go

@@ -144,18 +144,18 @@ func NewInputField() *InputField {
 	return &InputField{
 		Box:                                     NewBox(),
 		labelColor:                              Styles.SecondaryTextColor,
-		fieldBackgroundColor:                    Styles.ContrastBackgroundColor,
-		fieldTextColor:                          Styles.PrimaryTextColor,
+		fieldBackgroundColor:                    Styles.PrimaryTextColor,
+		fieldBackgroundColorFocused:             Styles.ContrastBackgroundColor,
+		fieldTextColor:                          Styles.ContrastPrimaryTextColor,
+		fieldTextColorFocused:                   Styles.PrimaryTextColor,
 		placeholderTextColor:                    Styles.ContrastSecondaryTextColor,
 		autocompleteListTextColor:               Styles.PrimitiveBackgroundColor,
 		autocompleteListBackgroundColor:         Styles.MoreContrastBackgroundColor,
 		autocompleteListSelectedTextColor:       Styles.PrimitiveBackgroundColor,
 		autocompleteListSelectedBackgroundColor: Styles.PrimaryTextColor,
-		autocompleteSuggestionTextColor:         Styles.ContrastPrimaryTextColor,
+		autocompleteSuggestionTextColor:         Styles.ContrastSecondaryTextColor,
 		fieldNoteTextColor:                      Styles.SecondaryTextColor,
 		labelColorFocused:                       ColorUnset,
-		fieldBackgroundColorFocused:             ColorUnset,
-		fieldTextColorFocused:                   ColorUnset,
 		placeholderTextColorFocused:             ColorUnset,
 	}
 }

styles.go

@@ -56,7 +56,7 @@ var Styles = Theme{
 	TertiaryTextColor:          tcell.ColorGreen.TrueColor(),
 	InverseTextColor:           tcell.ColorBlack.TrueColor(),
 	ContrastPrimaryTextColor:   tcell.ColorBlack.TrueColor(),
-	ContrastSecondaryTextColor: tcell.ColorDimGray.TrueColor(),
+	ContrastSecondaryTextColor: tcell.ColorLightSlateGray.TrueColor(),
 
 	PrimitiveBackgroundColor:    tcell.ColorBlack.TrueColor(),
 	ContrastBackgroundColor:     tcell.ColorBlue.TrueColor(),