Delete Theme.qml

It's completely useless since PlasmaDesktopTheme is always used instead.

style/kirigami/Theme.qml

-/*
- *  SPDX-FileCopyrightText: 2015 Marco Martin <mart@kde.org>
- *
- *  SPDX-License-Identifier: LGPL-2.0-or-later
- */
-
-import QtQuick 2.15
-
-pragma Singleton
-
-
-QtObject {
-    id: theme
-
-    property color textColor: palette.windowText
-    property color disabledTextColor: disabledPalette.windowText
-
-    property color highlightColor: palette.highlight
-    property color highlightedTextColor: palette.highlightedText
-    property color backgroundColor: palette.window
-    property color alternateBackgroundColor: hsvValueMix(theme.highlightColor, theme.backgroundColor)
-    property color activeTextColor: palette.highlight
-    property color activeBackgroundColor: palette.highlight
-    property color linkColor: hsvValueMix(theme.highlightColor, theme.textColor)
-    property color linkBackgroundColor: hsvValueMix(theme.linkColor, theme.backgroundColor)
-    property color visitedLinkColor: "#9b59b6"
-    property color visitedLinkBackgroundColor: hsvValueMix(theme.visitedLinkColor, theme.backgroundColor)
-    property color hoverColor: palette.highlight
-    property color focusColor: palette.highlight
-    property color negativeTextColor: "#DA4453"
-    property color negativeBackgroundColor: hsvValueMix(theme.negativeTextColor, theme.backgroundColor)
-    property color neutralTextColor: "#F67400"
-    property color neutralBackgroundColor: hsvValueMix(theme.neutralTextColor, theme.backgroundColor)
-    property color positiveTextColor: "#27AE60"
-    property color positiveBackgroundColor: hsvValueMix(theme.positiveTextColor, theme.backgroundColor)
-
-    property color buttonTextColor: palette.buttonText
-    property color buttonBackgroundColor: palette.button
-    property color buttonAlternateBackgroundColor: hsvValueMix(theme.buttonFocusColor, theme.buttonBackgroundColor)
-    property color buttonHoverColor: palette.highlight
-    property color buttonFocusColor: palette.highlight
-
-    property color viewTextColor: palette.text
-    property color viewBackgroundColor: palette.base
-    property color viewAlternateBackgroundColor: palette.alternateBase
-    property color viewHoverColor: palette.highlight
-    property color viewFocusColor: palette.highlight
-
-    property color selectionTextColor: palette.highlightedText
-    property color selectionBackgroundColor: palette.highlight
-    property color selectionAlternateBackgroundColor: hsvValueMix(theme.selectionBackgroundColor, theme.backgroundColor)
-    property color selectionHoverColor: palette.highlight
-    property color selectionFocusColor: palette.highlight
-
-    property color tooltipTextColor: palette.buttonText
-    property color tooltipBackgroundColor: palette.button
-    property color tooltipAlternateBackgroundColor: palette.window
-    property color tooltipHoverColor: palette.highlight
-    property color tooltipFocusColor: palette.highlight
-
-    property color complementaryTextColor: hslLightnessInvert(theme.textColor)
-    property color complementaryBackgroundColor: hslLightnessInvert(theme.backgroundColor)
-    property color complementaryAlternateBackgroundColor: hslLightnessInvert(theme.alternateBackgroundColor)
-    property color complementaryHoverColor: hslLightnessInvert(theme.hoverColor)
-    property color complementaryFocusColor: hslLightnessInvert(theme.focusColor)
-
-    property color headerTextColor: palette.text
-    property color headerBackgroundColor: palette.base
-    property color headerAlternateBackgroundColor: palette.alternateBase
-    property color headerHoverColor: palette.highlight
-    property color headerFocusColor: palette.highlight
-
-    property font defaultFont: fontMetrics.font
-    property font smallFont: {
-        let font = fontMetrics.font
-        if (!!font.pixelSize) {
-            font.pixelSize =- 2
-        } else {
-            font.pointSize =- 2
-        }
-        return font
-    }
-
-    property list<QtObject> children: [
-        FontMetrics {
-            id: fontMetrics
-        },
-        SystemPalette {
-            id: palette
-            colorGroup: SystemPalette.Active
-        },
-        SystemPalette {
-            id: disabledPalette
-            colorGroup: SystemPalette.Disabled
-        }
-    ]
-
-    function __propagateColorSet(object, context) {}
-
-    function __propagateTextColor(object, color) {}
-    function __propagateBackgroundColor(object, color) {}
-    function __propagatePrimaryColor(object, color) {}
-    function __propagateAccentColor(object, color) {}
-    
-    function hsvValueMix(color1, color2) {
-        return Qt.hsva(
-            color1.hsvHue,
-            color1.hsvSaturation,
-            (color1.hsvValue + color2.hsvValue)/2,
-            color1.a
-        )
-    }
-
-    function hslLightnessInvert(color) {
-        return Qt.hsla(
-            color.hslHue,
-            color.hslSaturation,
-            1-color.hslLightness,
-            color.a
-        )
-    }
-}