The download link above points to the Metallic Platinum player colour with a dark theme base and blue accents.
To download the other colours and the alternative theme, please read the forum thread at
https://getmusicbee.com/forum/index.php?topic=31284.0 or select:

Brushed Aluminium:

Dark Theme/Blue: https://www.mediafire.com/file/nh1vmpiepj11wee/BeatBar-MetBrushed_Dark_Blue.xmlc/file

Dark Theme/Red: https://www.mediafire.com/file/vecp7nnxhz92tsg/BeatBar-MetBrushed_Dark_Red.xmlc/file

Light Theme/Blue: https://www.mediafire.com/file/0uyn8e2t5deem1r/BeatBar-MetBrushed_Light_Blue.xmlc/file

Light Theme/Red: https://www.mediafire.com/file/sujflo9rbux7xoh/BeatBar-MetBrushed_Light_Red.xmlc/file

Machined Steel:

Dark Theme/Blue: https://www.mediafire.com/file/mpwyydvitogcsn1/BeatBar-MetMachinedSteel_Dark_Blue.xmlc/file

Dark Theme/Red: https://www.mediafire.com/file/ptj4q9mlh57x3ly/BeatBar-MetMachinedSteel_Dark_Red.xmlc/file

Light Theme/Blue: https://www.mediafire.com/file/2x83wlwvnz5u5uc/BeatBar-MetMachinedSteel_Light_Blue.xmlc/file

Light Theme/Red: https://www.mediafire.com/file/wu4lvjeicf6h80a/BeatBar-MetMachinedSteel_Light_Red.xmlc/file

Platinum:

Dark Theme/Blue: https://www.mediafire.com/file/yphye1xcibywekp/BeatBar-MetPlatinum_Dark_Blue.xmlc/file

Dark Theme/Red: https://www.mediafire.com/file/9ad36zh9hlv0jbf/BeatBar-MetPlatinum_Dark_Red.xmlc/file

Light Theme/Blue: https://www.mediafire.com/file/8uyyvaembu2oj0g/BeatBar-MetPlatinum_Light_Blue.xmlc/file

Light Theme/Red: https://www.mediafire.com/file/gnguaordxgpt20k/BeatBar-MetPlatinum_Light_Red.xmlc/file

Silver:

Dark Theme/Blue: https://www.mediafire.com/file/2xmqhm44w1s1vth/BeatBar-MetSilver_Dark_Blue.xmlc/file

Dark Theme/Red: https://www.mediafire.com/file/lq5y9uoeayho589/BeatBar-MetSilver_Dark_Red.xmlc/file

Light Theme/Blue: https://www.mediafire.com/file/6ntmgtf6xiz7pio/BeatBar-MetSilver_Light_Blue.xmlc/file

Light Theme/Red: https://www.mediafire.com/file/867wmnlcd0ecoon/BeatBar-MetSilver_Light_Red.xmlc/file