Mid color is used for scrollbars it seems

resources/styles/nheko-dark.qss

@@ -205,11 +205,6 @@ TextField {
     qproperty-labelColor: #caccd1;
 }
 
-ScrollBar {
-    qproperty-handleColor: #2d3139;
-    qproperty-backgroundColor: #202228;
-}
-
 SideBarActions,
 TopRoomBar
 {

resources/styles/nheko.qss

@@ -236,11 +236,6 @@ TextInputWidget {
     border-top: 1px solid #dcdcdc;
 }
 
-ScrollBar {
-    qproperty-handleColor: #ccc;
-    qproperty-backgroundColor: #efefef;
-}
-
 SideBarActions {
     border: none;
     border-top: 1px solid #dcdcdc;

src/UserSettingsPage.cpp

@@ -111,7 +111,7 @@ UserSettings::applyTheme()
                   /*button*/ QColor("#333"),
                   /*light*/ QColor(0xef, 0xef, 0xef),
                   /*dark*/ QColor(220, 220, 220),
-                  /*mid*/ QColor(0, 0xff, 0), // not used anywhere, this is for debugging
+                  /*mid*/ QColor(110, 110, 110),
                   /*text*/ QColor("#333"),
                   /*bright_text*/ QColor("#333"),
                   /*base*/ QColor("white"),
@@ -129,7 +129,7 @@ UserSettings::applyTheme()
                   /*button*/ QColor(0xff, 0xff, 0xff),
                   /*light*/ QColor("#caccd1"),
                   /*dark*/ QColor("#2d3139"),
-                  /*mid*/ QColor(0, 0xff, 0), // not used anywhere, this is for debugging
+                  /*mid*/ QColor(110, 110, 110), // not used anywhere, this is for debugging
                   /*text*/ QColor("#caccd1"),
                   /*bright_text*/ QColor(0xff, 0xff, 0xff),
                   /*base*/ QColor("#2d3139"),