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#2496 Displays use complementary color for aliases in dark mode (#2548)

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Co-authored-by: denny <dennis.sheirer@gmail.com>
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Denny Sheirer
2026-11-01 05:38:48 -05:00
committed by GitHub
parent 197cec04f3
commit 7b249af944
6 changed files with 208 additions and 3 deletions
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src/test/java/io/github/dsheirer/gui/theme/ColorContrastTest.java Normal file
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/*
* *****************************************************************************
* Copyright (C) 2014-2026 Dennis Sheirer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
* ****************************************************************************
*/
package io.github.dsheirer.gui.theme;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.awt.Color;
import org.junit.jupiter.api.Test;
class ColorContrastTest
{
private static final Color DARK_BACKGROUND = new Color(0x2B2B2B);
private static final Color SELECTION_BACKGROUND = new Color(0x214283);
@Test
void blackBecomesWhite()
{
assertEquals(Color.WHITE, ColorContrast.getReadable(Color.BLACK, DARK_BACKGROUND));
}
@Test
void lowContrastColorBecomesComplement()
{
assertEquals(Color.YELLOW, ColorContrast.getReadable(Color.BLUE, DARK_BACKGROUND));
}
@Test
void readableColorsAreUnchanged()
{
assertEquals(Color.RED, ColorContrast.getReadable(Color.RED, DARK_BACKGROUND));
assertEquals(Color.ORANGE, ColorContrast.getReadable(Color.ORANGE, DARK_BACKGROUND));
}
@Test
void everyGrayIsReadable()
{
for(int value = 0; value < 256; value++)
{
Color gray = new Color(value, value, value);
for(Color background: new Color[]{DARK_BACKGROUND, SELECTION_BACKGROUND, new Color(127, 127, 127)})
{
assertTrue(ColorContrast.getContrastRatio(ColorContrast.getReadable(gray, background), background) >=
ColorContrast.MINIMUM_CONTRAST_RATIO, "Gray " + value + " on " + background);
}
}
}
}