I am still getting this issue in Ubuntu 16.10 with Radiance and Ambiance themes, LO 5.2.3.2 (Build ID: 1:5.2.3~rc2-0ubuntu1~yakkety1).
For example, if I close LO, switch themes from and then back to Radiance, start LO the text color in the tabs are black (which is good). In Impress I then select a line > right mouse > Line..., the text in the tabs switch to white.
I am still getting this issue in Ubuntu 16.10 with Radiance and Ambiance themes, LO 5.2.3.2 (Build ID: 1:5.2.3~ rc2-0ubuntu1~ yakkety1) .
For example, if I close LO, switch themes from and then back to Radiance, start LO the text color in the tabs are black (which is good). In Impress I then select a line > right mouse > Line..., the text in the tabs switch to white.