Logic Masters Deutschland e.V.

The following puzzle was set for Round 2 of damasosos92's League hosted in the Skunkworks server, where the participants were asked to tell the story of the song "The Boy" by Tom Rosenthal. Thus the title and the rule descriptions in the solving link is very thematic, but I will write everything technically on this LMD page. This puzzle was also inspired by the awesome puzzles of Nell Gwyn, such as this one, so many thanks to her. Enjoy!

Rules:
Four-Color Pentominous: Divide the grid fully into pentominoes (orthogonally-connected regions of five cells each). Each pentomino must be one of four colors: Green, Gray, Blue or Orange. No two pentominoes of the same shape (including rotations and reflections) or the same color (or both) can share an edge.
Additionally: This puzzle cannot be solved by printing on pen and paper, as the grid contains extra letters written in white which will get revealed as you find correct colors of certain cells. Not every pentomino needs to have such a letter. To start the puzzle, color the top-left cell green. There is also exactly one corner in the puzzle where all four colors meet, this is relevant for answer check. (This corner signalizes the rose that the boy is chasing in the thematic version.)

Puzzle Links: You can solve the puzzle in Penpa+. The answer check looks for all correct gray shading, and you need to mark the corner that touches all four colors by green Edge'ing the 4 edges that touch that corner.