A .cube file contains a color lookup table; many are designed for a particular camera log profile, so not every LUT belongs on a normal phone JPEG.
A practical way to approach it
Check compatibility
Use a standard .cube LUT. If the result looks unexpectedly washed out or extremely dark, it may expect a different source color profile.
Import it safely
Open a JPG, PNG or WebP in MintGrade, switch to Color, and select Import .cube. Keep the original photo available for comparison.
Control the strength
Lower the LUT Strength slider if skin or highlights become distorted. Compare the result at regular viewing size before exporting.
One limitation to remember
A LUT designed to convert log video is not automatically an attractive photographic look.
Continue in MintGrade: Color controls
Use a standard .cube LUT. If the result looks unexpectedly washed out or extremely dark, it may expect a different source color profile.
Opens the relevant controls for JPG, PNG and WebP files. No edit is applied until you choose one.
Open color controls in MintGrade →