remove separators and make page background darker

ui/theme.go

@@ -0,0 +1,32 @@
+package ui
+
+import (
+	"image/color"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/theme"
+)
+
+type MyTheme struct{}
+
+var _ fyne.Theme = (*MyTheme)(nil)
+
+func (m MyTheme) Color(name fyne.ThemeColorName, variant fyne.ThemeVariant) color.Color {
+	if name == theme.ColorNameScrollBar {
+		return theme.DarkTheme().Color(theme.ColorNameForeground, variant)
+	}
+
+	return theme.DarkTheme().Color(name, variant)
+}
+
+func (m MyTheme) Icon(name fyne.ThemeIconName) fyne.Resource {
+	return theme.DefaultTheme().Icon(name)
+}
+
+func (m MyTheme) Font(style fyne.TextStyle) fyne.Resource {
+	return theme.DefaultTheme().Font(style)
+}
+
+func (m MyTheme) Size(name fyne.ThemeSizeName) float32 {
+	return theme.DefaultTheme().Size(name)
+}