[GH-ISSUE #990] Wrong color in DropDown SetListStyles #718

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opened 2026-03-04 01:07:15 +03:00 by kerem · 1 comment

kerem commented

2026-03-04 01:07:15 +03:00

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Originally created by @eeeXun on GitHub (May 21, 2024).
Original GitHub issue: https://github.com/rivo/tview/issues/990

In the following code, I want to set unselected background color to red.

package main

import (
	"github.com/gdamore/tcell/v2"
	"github.com/rivo/tview"
)

func main() {
	app := tview.NewApplication()
	dropdown := tview.NewDropDown().
		SetLabel("Select an option (hit Enter): ").
		SetOptions([]string{"A", "AA", "AAA", "AAAA", "AAAAA"}, nil)
	dropdown.SetListStyles(tcell.StyleDefault.Background(tcell.ColorRed), tcell.StyleDefault)
	if err := app.SetRoot(dropdown, true).SetFocus(dropdown).Run(); err != nil {
		panic(err)
	}
}

This is before 03bdc867be

This is after 03bdc867be, some areas did not change to red.

Originally created by @eeeXun on GitHub (May 21, 2024). Original GitHub issue: https://github.com/rivo/tview/issues/990 In the following code, I want to set `unselected` background color to red. ```go package main import ( "github.com/gdamore/tcell/v2" "github.com/rivo/tview" ) func main() { app := tview.NewApplication() dropdown := tview.NewDropDown(). SetLabel("Select an option (hit Enter): "). SetOptions([]string{"A", "AA", "AAA", "AAAA", "AAAAA"}, nil) dropdown.SetListStyles(tcell.StyleDefault.Background(tcell.ColorRed), tcell.StyleDefault) if err := app.SetRoot(dropdown, true).SetFocus(dropdown).Run(); err != nil { panic(err) } } ``` This is before 03bdc867bee4ce7355079090c396d9ec861fc4bb ![image](https://github.com/rivo/tview/assets/58657914/de7dc2d8-f8fa-476d-8b8a-032ad33a0c52) This is after 03bdc867bee4ce7355079090c396d9ec861fc4bb, some areas did not change to red. ![image](https://github.com/rivo/tview/assets/58657914/a3089cae-e88b-4277-aafe-75097df470f7)

kerem closed this issue

2026-03-04 01:07:15 +03:00

kerem commented

2026-03-04 01:07:16 +03:00

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Owner

@rivo commented on GitHub (Aug 7, 2024):

The latest commit should give you the previous behaviour again.

However, I should note that using tcell.ColorDefault will almost always have unintended side effects. Your code uses these implicitly by using tcell.StyleDefault. I would advise you to always specify an actual color for both background and foreground (unselected and selected).

@rivo commented on GitHub (Aug 7, 2024): The latest commit should give you the previous behaviour again. However, I should note that using [`tcell.ColorDefault`](https://pkg.go.dev/github.com/gdamore/tcell/v2#ColorDefault) will almost always have unintended side effects. Your code uses these implicitly by using `tcell.StyleDefault`. I would advise you to always specify an actual color for both background and foreground (unselected and selected).

kerem referenced this issue

2026-03-04 01:09:04 +03:00

[PR #719] [CLOSED] Fix AddDropDown #1025