build: Move tests/reftests to testsuite/reftests

testsuite/reftests/reset-to-defaults.css

@@ -0,0 +1,68 @@
+/* @import this colorsheet to get the default values for every property.
+ * This is useful when writing special CSS tests that should not be
+ * inluenced by themes - not even the default ones.
+ * Keep in mind that the output will be very ugly and not look like
+ * anything GTK.
+ * Also, when adding new style properties, please add them here.
+ */
+
+* {
+  color: inherit;
+  font-size: inherit;
+  background-color: initial;
+  font-family: inherit;
+  font-style: inherit;
+  font-variant: inherit;
+  font-weight: inherit;
+  text-shadow: inherit;
+  icon-shadow: inherit;
+  box-shadow: initial;
+  margin-top: initial;
+  margin-left: initial;
+  margin-bottom: initial;
+  margin-right: initial;
+  padding-top: initial;
+  padding-left: initial;
+  padding-bottom: initial;
+  padding-right: initial;
+  border-top-style: initial;
+  border-top-width: initial;
+  border-left-style: initial;
+  border-left-width: initial;
+  border-bottom-style: initial;
+  border-bottom-width: initial;
+  border-right-style: initial;
+  border-right-width: initial;
+  border-top-left-radius: initial;
+  border-top-right-radius: initial;
+  border-bottom-right-radius: initial;
+  border-bottom-left-radius: initial;
+  outline-style: initial;
+  outline-width: initial;
+  outline-offset: initial;
+  background-clip: initial;
+  background-origin: initial;
+  background-size: initial;
+  background-position: initial;
+  border-top-color: initial;
+  border-right-color: initial;
+  border-bottom-color: initial;
+  border-left-color: initial;
+  outline-color:  initial;
+  background-repeat: initial;
+  background-image: initial;
+  border-image-source: initial;
+  border-image-repeat: initial;
+  border-image-slice: initial;
+  border-image-width: initial;
+  transition-property: initial;
+  transition-duration: initial;
+  transition-timing-function: initial;
+  transition-delay: initial;
+  engine: initial;
+  gtk-key-bindings: initial;
+
+  -GtkWidget-focus-line-width: 0;
+  -GtkWidget-focus-padding: 0;
+  -GtkNotebook-initial-gap: 0;
+}