Steps:
1. Open repo or new project with shader files and material
2. Select Material
3. Click the texture on Material -> observe
3. On the top right click the gear icon on Material, then click "Select Shader" -> observe

Expected result :
Select Shader should have the consistent behavior that yellow framed popup animation is shown when the file is focused just like select prefab / select texture

Actual result:
Select Shader only select the shader file without the yallow framed animation
It doesn't show the yellow framed animation

Reproduced with: 2017.1.0b1 (a29fc4a7eb25), 5.6.0f3, 5.1.5f1