Here is a list of all files with brief descriptions:

AmpGen
simd
arm128d_types.h
avx2d_types.h
avx2f_types.h
avx512d_types.h
integrate_fp.h
iterator.h
utils.h
AddCPConjugate.h
AmplitudeRules.h
ApplicationOptions.h
ArgumentPack.h
Array.h
ASTResolver.h
BinDT.h
CacheTransfer.h
Chi2Estimator.h
CoherentSum.h
CompiledExpression.h
CompiledExpressionBase.h
CompilerWrapper.h
Complex.h
Configurable.h
ConfigurableBase.h
CoupledChannel.h
DalitzIntegrator.h
DecayChainStack.h
DiracMatrices.h
DiscreteDistribution.h
DynamicContainer.h
DynamicFCN.h
enum.h
ErrorPropagator.h
Event.h
EventList.h
EventListSIMD.h
EventType.h
Expression.h
ExpressionParser.h
ExtendLikelihoodBase.h
Factory.h
FastDT.h
FitFraction.h
FitResult.h
Generator.h
IncoherentSum.h
Integrator.h
KahanSum.h
KeyedFunctors.h
Kinematics.h
kMatrix.h
Lineshapes.h
MatrixElement.h
MetaUtils.h
Minimiser.h
MinuitExpression.h
MinuitParameter.h
MinuitParameterSet.h
MsgService.h
NamedParameter.h
NumericalIntegration.h
OptionsParser.h
Pade.h
Particle.h
ParticleProperties.h
ParticlePropertiesList.h
PhaseSpace.h
PolarisedSum.h
ProfileClock.h
ProgressBar.h
Projection.h
Property.h
QuarkContent.h
RecursivePhaseSpace.h
SimPDF.h
Simplify.h
SmallVector.h
Spline.h
Store.h
SumPDF.h
Tensor.h
ThreadPool.h
ThreeBodyCalculators.h
Transform.h
TreePhaseSpace.h
TreeReader.h
Types.h
Units.h
Utilities.h
Vertex.h
Wigner.h