[PATCH v2 0/2] MR8327: comctl32/listview: Always set the initial background mode to TRANSPARENT.

[Zhiyi Zhang (＠zhiyi)]

Comctl32 v5 listview sets the initial background mix mode to TRANSPARENT. Comctl32 v6 listview sets it to OPAQUE. Use TRANSPARENT for both v5 and v6 for now.

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  v2: comctl32/listview: Set the initial background mix mode to TRANSPARENT.
      comctl32/tests: Test listview background mix mode.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/8327