Progress's NewModel no longer returns an error for better usability

To that end, bad hex colors also default to black. This is also how we
handle bad hex notation in Lip Gloss.

progress/progress.go

@@ -46,7 +46,7 @@ var color func(string) termenv.Color = termenv.ColorProfile().Color
 //	       WithoutPercentage(),
 //     )
 //
-type Option func(*Model) error
+type Option func(*Model)
 
 // WithDefaultGradient sets a gradient fill with default colors.
 func WithDefaultGradient() Option {
@@ -55,8 +55,8 @@ func WithDefaultGradient() Option {
 
 // WithGradient sets a gradient fill blending between two colors.
 func WithGradient(colorA, colorB string) Option {
-	return func(m *Model) error {
-		return m.setRamp(colorA, colorB, false)
+	return func(m *Model) {
+		m.setRamp(colorA, colorB, false)
 	}
 }
 
@@ -69,25 +69,23 @@ func WithDefaultScaledGradient() Option {
 // WithScaledGradient scales the gradient to fit the width of the filled portion of
 // the progress bar.
 func WithScaledGradient(colorA, colorB string) Option {
-	return func(m *Model) error {
-		return m.setRamp(colorA, colorB, true)
+	return func(m *Model) {
+		m.setRamp(colorA, colorB, true)
 	}
 }
 
 // WithSolidFill sets the progress to use a solid fill with the given color.
 func WithSolidFill(color string) Option {
-	return func(m *Model) error {
+	return func(m *Model) {
 		m.FullColor = color
 		m.useRamp = false
-		return nil
 	}
 }
 
 // WithoutPercentage hides the numeric percentage.
 func WithoutPercentage() Option {
-	return func(m *Model) error {
+	return func(m *Model) {
 		m.ShowPercentage = false
-		return nil
 	}
 }
 
@@ -95,9 +93,8 @@ func WithoutPercentage() Option {
 // set the width via the Width property, which can come in handy if you're
 // waiting for a tea.WindowSizeMsg.
 func WithWidth(w int) Option {
-	return func(m *Model) error {
+	return func(m *Model) {
 		m.Width = w
-		return nil
 	}
 }
 
@@ -150,7 +147,7 @@ type Model struct {
 }
 
 // NewModel returns a model with default values.
-func NewModel(opts ...Option) (Model, error) {
+func NewModel(opts ...Option) Model {
 	m := Model{
 		id:             nextID(),
 		Width:          defaultWidth,
@@ -161,16 +158,12 @@ func NewModel(opts ...Option) (Model, error) {
 		ShowPercentage: true,
 		PercentFormat:  " %3.0f%%",
 	}
-
 	m.SetSpringOptions(defaultFrequency, defaultDamping)
 
 	for _, opt := range opts {
-		if err := opt(&m); err != nil {
-			return Model{}, err
-		}
+		opt(&m)
 	}
-
-	return m, nil
+	return m
 }
 
 // Update is used to animation the progress bar during transitons. Use
@@ -306,22 +299,17 @@ func (m Model) percentageView(percent float64) string {
 	return percentage
 }
 
-func (m *Model) setRamp(colorA, colorB string, scaled bool) error {
-	a, err := colorful.Hex(colorA)
-	if err != nil {
-		return err
-	}
-
-	b, err := colorful.Hex(colorB)
-	if err != nil {
-		return err
-	}
+func (m *Model) setRamp(colorA, colorB string, scaled bool) {
+	// In the event of an error colors here will default to black. For
+	// usability's sake, and because such an error is only cosmetic, we're
+	// ignoring the error for sake of usability.
+	a, _ := colorful.Hex(colorA)
+	b, _ := colorful.Hex(colorB)
 
 	m.useRamp = true
 	m.scaleRamp = scaled
 	m.rampColorA = a
 	m.rampColorB = b
-	return nil
 }
 
 func max(a, b int) int {