move painting and drawing debug log to verbose

frontend/apps/reader/modules/readerview.lua

@@ -118,7 +118,7 @@ function ReaderView:resetLayout()
 end
 
 function ReaderView:paintTo(bb, x, y)
-    dbg("painting", self.visible_area, "to", x, y)
+    dbg:v("readerview painting", self.visible_area, "to", x, y)
     if self.page_scroll then
         self:drawPageBackground(bb, x, y)
     else

frontend/document/document.lua

@@ -353,7 +353,7 @@ Draw page content to blitbuffer.
 --]]
 function Document:drawPage(target, x, y, rect, pageno, zoom, rotation, gamma, render_mode)
     local tile = self:renderPage(pageno, rect, zoom, rotation, gamma, render_mode)
-    DEBUG("now painting", tile, rect)
+    DEBUG:v("document drawing", tile, rect)
     target:blitFrom(tile.bb,
         x, y,
         rect.x - tile.excerpt.x,

frontend/ui/uimanager.lua

@@ -586,7 +586,7 @@ function UIManager:_repaint()
 
     -- execute refreshes:
     for _, refresh in ipairs(self._refresh_stack) do
-        dbg("triggering refresh", refresh)
+        dbg:v("triggering refresh", refresh)
         Screen[refresh_methods[refresh.mode]](Screen,
             refresh.region.x - 1, refresh.region.y - 1,
             refresh.region.w + 2, refresh.region.h + 2)