JIDE: RangeSlider:

- updated with latest changes from FlatSliderUI
- use static FlatSliderUI methods for thumb painting
- hover/pressed feedback on single thumb
- hover/pressed feedback on middle track and both thumbs
- added JSlider components to FlatRangeSliderTest for easier testing/comparing

flatlaf-testing/src/main/resources/META-INF/services/com.formdev.flatlaf.FlatDefaultsAddon

@@ -1 +1,2 @@
+com.formdev.flatlaf.testing.jideoss.FlatJideOssDefaultsTestAddon
 com.formdev.flatlaf.testing.swingx.FlatSwingXDefaultsTestAddon

flatlaf-testing/src/main/resources/com/formdev/flatlaf/testing/jideoss/FlatTestLaf.properties

@@ -0,0 +1,20 @@
+#
+# Copyright 2020 FormDev Software GmbH
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+#---- RangeSlider ----
+
+Slider.hoverTrackColor=#44f
+Slider.pressedTrackColor=#8f8