Splitter styles are not applied

[igdmdimitrov]

Description

Styles for splitter, splitter-ghost and splitter-base are not applied

• version: 1.9.0
• browser:

Steps to reproduce

Apply styling for splitter, splitter-ghost and splitter-base parts.

// example
igc-dockmanager::part(splitter-ghost) {
  background-color: black;
}

igc-dockmanager::part(splitter-base) {
  background-color: red;
}

igc-dockmanager::part(splitter) {
  margin: 10px;
}

Result

Styles are not applied.

Expected result

Styles should be applied.

[igdmdimitrov]

Fix is now available in version 1.10.0.